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23621230864 = 24721124992
BaseRepresentation
bin10101111111111011…
…110110000100010000
32020222012111212010101
4111333323312010100
5341334013341424
614503524542144
71464233102200
oct257773660420
966865455111
1023621230864
11a021629400
1246b2851954
1322c59ac4aa
141201200400
15933b23344
hex57fef6110

23621230864 has 135 divisors (see below), whose sum is σ = 58635479511. Its totient is φ = 9184633920.

The previous prime is 23621230861. The next prime is 23621230879. The reversal of 23621230864 is 46803212632.

The square root of 23621230864 is 153692.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (23621230861) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 47336887 + ... + 47337385.

Almost surely, 223621230864 is an apocalyptic number.

23621230864 is the 153692-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23621230864

23621230864 is an abundant number, since it is smaller than the sum of its proper divisors (35014248647).

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

23621230864 is an equidigital number, since it uses as much as digits as its factorization.

23621230864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 23621230864 in words is "twenty-three billion, six hundred twenty-one million, two hundred thirty thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 49 56 77 88 98 112 121 154 176 196 242 308 392 484 499 539 616 784 847 968 998 1078 1232 1694 1936 1996 2156 3388 3493 3992 4312 5489 5929 6776 6986 7984 8624 10978 11858 13552 13972 21956 23716 24451 27944 38423 43912 47432 48902 55888 60379 76846 87824 94864 97804 120758 153692 195608 241516 249001 268961 307384 391216 422653 483032 498002 537922 614768 845306 966064 996004 1075844 1690612 1743007 1992008 2151688 2739011 2958571 3381224 3486014 3984016 4303376 5478022 5917142 6762448 6972028 10956044 11834284 12201049 13944056 19173077 21912088 23668568 24402098 27888112 30129121 38346154 43824176 47337136 48804196 60258242 76692308 97608392 120516484 134211539 153384616 195216784 210903847 241032968 268423078 306769232 421807694 482065936 536846156 843615388 1073692312 1476326929 1687230776 2147384624 2952653858 3374461552 5905307716 11810615432 23621230864