Search a number
-
+
20764541762048 = 29731613063817
BaseRepresentation
bin1001011100010100111110…
…01000101011101000000000
32201112001220121200010102002
410232022133020223220000
510210201240142341143
6112055033201243132
74242121462540610
oct456123710535000
981461817603362
1020764541762048
116686213548847
1223b43830334a8
13b7811b117206
1451b01b2b2a40
1526020027d5b8
hex12e29f22ba00

20764541762048 has 160 divisors (see below), whose sum is σ = 49747384439808. Its totient is φ = 8470838476800.

The previous prime is 20764541762009. The next prime is 20764541762051. The reversal of 20764541762048 is 84026714546702.

It is a super-3 number, since 3×207645417620483 (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 20764541761984 and 20764541762002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5245436 + ... + 8309252.

Almost surely, 220764541762048 is an apocalyptic number.

20764541762048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20764541762048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24873692219904).

20764541762048 is an abundant number, since it is smaller than the sum of its proper divisors (28982842677760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20764541762048 is an equidigital number, since it uses as much as digits as its factorization.

20764541762048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063934 (or 3063918 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 20764541762048 in words is "twenty trillion, seven hundred sixty-four billion, five hundred forty-one million, seven hundred sixty-two thousand, forty-eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 61 62 64 112 122 124 128 217 224 244 248 256 427 434 448 488 496 512 854 868 896 976 992 1708 1736 1792 1891 1952 1984 3416 3472 3584 3782 3904 3968 6832 6944 7564 7808 7936 13237 13664 13888 15128 15616 15872 26474 27328 27776 30256 31232 52948 54656 55552 60512 105896 109312 111104 121024 211792 218624 242048 423584 484096 847168 968192 1694336 3063817 3388672 6127634 6777344 12255268 21446719 24510536 42893438 49021072 85786876 94978327 98042144 171573752 186892837 189956654 196084288 343147504 373785674 379913308 392168576 664848289 686295008 747571348 759826616 784337152 1308249859 1329696578 1372590016 1495142696 1519653232 1568674304 2616499718 2659393156 2745180032 2990285392 3039306464 5232999436 5318786312 5490360064 5793677947 5980570784 6078612928 10465998872 10637572624 10980720128 11587355894 11961141568 12157225856 20931997744 21275145248 23174711788 23922283136 24314451712 40555745629 41863995488 42550290496 46349423576 47844566272 48628903424 81111491258 83727990976 85100580992 92698847152 95689132544 162222982516 167455981952 170201161984 185397694304 324445965032 334911963904 340402323968 370795388608 648891930064 669823927808 741590777216 1297783860128 1483181554432 2595567720256 2966363108864 5191135440512 10382270881024 20764541762048