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2153049560 = 235433677
BaseRepresentation
bin1000000001010100…
…1110110111011000
312120001100020202022
42000111032313120
513402140041220
6553351154012
7104232422264
oct20025166730
95501306668
102153049560
11a05382002
12501075908
132840a332c
14165d390a4
15c9045925
hex8054edd8

2153049560 has 64 divisors (see below), whose sum is σ = 4967028000. Its totient is φ = 839948928.

The previous prime is 2153049557. The next prime is 2153049571. The reversal of 2153049560 is 659403512.

It is a self number, because there is not a number n which added to its sum of digits gives 2153049560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3179942 + ... + 3180618.

Almost surely, 22153049560 is an apocalyptic number.

2153049560 is a gapful number since it is divisible by the number (20) 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 2153049560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483514000).

2153049560 is an abundant number, since it is smaller than the sum of its proper divisors (2813978440).

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

2153049560 is an frugal number, since it uses more digits than its factorization.

2153049560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2153049560 is about 46400.9650761706. The cubic root of 2153049560 is about 1291.2728177966.

The spelling of 2153049560 in words is "two billion, one hundred fifty-three million, forty-nine thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 677 860 1354 1720 1849 2708 3385 3698 5416 6770 7396 9245 13540 14792 18490 27080 29111 36980 58222 73960 79507 116444 145555 159014 232888 291110 318028 397535 582220 636056 795070 1164440 1251773 1590140 2503546 3180280 5007092 6258865 10014184 12517730 25035460 50070920 53826239 107652478 215304956 269131195 430609912 538262390 1076524780 2153049560