Search a number
-
+
20830895169730 = 25171927672330753
BaseRepresentation
bin1001011110010000100100…
…00110110110000011000010
32201202102011220022111000221
410233020102012312003002
510212243133130412410
6112145325305133254
74246661000313022
oct457102206660302
981672156274027
1020830895169730
116701373299058
12240520078a22a
13b81463c1a419
1452031388ba82
15261cd56774da
hex12f2121b60c2

20830895169730 has 64 divisors (see below), whose sum is σ = 41805895426560. Its totient is φ = 7426782756864.

The previous prime is 20830895169727. The next prime is 20830895169743. The reversal of 20830895169730 is 3796159803802.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7772034 + ... + 10102786.

It is an arithmetic number, because the mean of its divisors is an integer number (653217116040).

Almost surely, 220830895169730 is an apocalyptic number.

20830895169730 is an abundant number, since it is smaller than the sum of its proper divisors (20975000256830).

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

20830895169730 is a wasteful number, since it uses less digits than its factorization.

20830895169730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333563.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 20830895169730 in words is "twenty trillion, eight hundred thirty billion, eight hundred ninety-five million, one hundred sixty-nine thousand, seven hundred thirty".

Divisors: 1 2 5 10 17 19 34 38 85 95 170 190 323 646 1615 2767 3230 5534 13835 27670 47039 52573 94078 105146 235195 262865 470390 525730 893741 1787482 2330753 4468705 4661506 8937410 11653765 23307530 39622801 44284307 79245602 88568614 198114005 221421535 396228010 442843070 752833219 1505666438 3764166095 6449193551 7528332190 12898387102 32245967755 64491935510 109636290367 122534677469 219272580734 245069354938 548181451835 612673387345 1096362903670 1225346774690 2083089516973 4166179033946 10415447584865 20830895169730