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23215264631268 = 2237326501443643
BaseRepresentation
bin1010100011101001110011…
…00110100000100111100100
310001012100122201010002010220
411101310321212200213210
511020324330221200033
6121212540105444340
74614150620323113
oct521647146404744
9101170581102126
1023215264631268
1174405a1733356
12272b3351a06b0
13cc52617450a8
145a38a6663c7a
152a3d37bd7bb3
hex151d399a09e4

23215264631268 has 24 divisors (see below), whose sum is σ = 54910991230368. Its totient is φ = 7632415768896.

The previous prime is 23215264631261. The next prime is 23215264631329. The reversal of 23215264631268 is 86213646251232.

It is a self number, because there is not a number n which added to its sum of digits gives 23215264631268.

It is not an unprimeable number, because it can be changed into a prime (23215264631261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13250720946 + ... + 13250722697.

It is an arithmetic number, because the mean of its divisors is an integer number (2287957967932).

Almost surely, 223215264631268 is an apocalyptic number.

It is an amenable number.

23215264631268 is an abundant number, since it is smaller than the sum of its proper divisors (31695726599100).

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

23215264631268 is a wasteful number, since it uses less digits than its factorization.

23215264631268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26501443723 (or 26501443721 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 51.

The spelling of 23215264631268 in words is "twenty-three trillion, two hundred fifteen billion, two hundred sixty-four million, six hundred thirty-one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 26501443643 53002887286 79504330929 106005774572 159008661858 318017323716 1934605385939 3869210771878 5803816157817 7738421543756 11607632315634 23215264631268