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23232012031220 = 2253731394610853
BaseRepresentation
bin1010100100001000111111…
…10100110001010011110100
310001020221212212022010221012
411102010133310301103310
511021113130034444340
6121224350004411352
74615312626013046
oct522043764612364
9101227785263835
1023232012031220
117447706152863
1227326299a6b58
13cc6a002c54c5
145a461498ba96
152a44b8115565
hex15211fd314f4

23232012031220 has 24 divisors (see below), whose sum is σ = 50105798922984. Its totient is φ = 9041647925376.

The previous prime is 23232012031141. The next prime is 23232012031229. The reversal of 23232012031220 is 2213021023232.

It can be written as a sum of positive squares in 4 ways, for example, as 3796363877476 + 19435648153744 = 1948426^2 + 4408588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23232012031229) 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, 15697304687 + ... + 15697306166.

It is an arithmetic number, because the mean of its divisors is an integer number (2087741621791).

Almost surely, 223232012031220 is an apocalyptic number.

23232012031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23232012031220 is an abundant number, since it is smaller than the sum of its proper divisors (26873786891764).

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

23232012031220 is a wasteful number, since it uses less digits than its factorization.

23232012031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31394610899 (or 31394610897 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23232012031220 its reverse (2213021023232), we get a palindrome (25445033054452).

The spelling of 23232012031220 in words is "twenty-three trillion, two hundred thirty-two billion, twelve million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 31394610853 62789221706 125578443412 156973054265 313946108530 627892217060 1161600601561 2323201203122 4646402406244 5808003007805 11616006015610 23232012031220