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20313965052 = 223536975653
BaseRepresentation
bin10010111010110011…
…101000000111111100
31221102201022100100000
4102322303220013330
5313100333340202
613155422434300
71316253565623
oct227263500774
957381270300
1020313965052
118684781677
123b2b132990
131bb9754c84
14da9c926ba
157dd5d791c
hex4bace81fc

20313965052 has 72 divisors (see below), whose sum is σ = 53274837616. Its totient is φ = 6768292608.

The previous prime is 20313965051. The next prime is 20313965143. The reversal of 20313965052 is 25056931302.

It is a super-2 number, since 2×203139650522 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20313964998 and 20313965016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313965051) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3590658 + ... + 3596310.

Almost surely, 220313965052 is an apocalyptic number.

It is an amenable number.

20313965052 is an abundant number, since it is smaller than the sum of its proper divisors (32960872564).

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

20313965052 is a wasteful number, since it uses less digits than its factorization.

20313965052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369 (or 9355 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 20313965052 in words is "twenty billion, three hundred thirteen million, nine hundred sixty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 3697 5653 7394 11091 11306 14788 16959 22182 22612 33273 33918 44364 50877 66546 67836 99819 101754 133092 152631 199638 203508 299457 305262 399276 457893 598914 610524 898371 915786 1197828 1373679 1796742 1831572 2747358 3593484 5494716 20899141 41798282 62697423 83596564 125394846 188092269 250789692 376184538 564276807 752369076 1128553614 1692830421 2257107228 3385660842 5078491263 6771321684 10156982526 20313965052