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23815195432 = 237997426551
BaseRepresentation
bin10110001011011111…
…110000101100101000
32021110201111021111021
4112023133300230220
5342233142223212
614535054142224
71502106551440
oct261337605450
967421437437
1023815195432
11a1110698a6
1247477b1974
132326c32622
14121cc91120
15945b89307
hex58b7f0b28

23815195432 has 32 divisors (see below), whose sum is σ = 51083867520. Its totient is φ = 10196251200.

The previous prime is 23815195427. The next prime is 23815195471. The reversal of 23815195432 is 23459151832.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157444 + ... + 269107.

It is an arithmetic number, because the mean of its divisors is an integer number (1596370860).

Almost surely, 223815195432 is an apocalyptic number.

It is an amenable number.

23815195432 is an abundant number, since it is smaller than the sum of its proper divisors (27268672088).

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

23815195432 is a wasteful number, since it uses less digits than its factorization.

23815195432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427561 (or 427557 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The spelling of 23815195432 in words is "twenty-three billion, eight hundred fifteen million, one hundred ninety-five thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 997 1994 3988 6979 7976 13958 27916 55832 426551 853102 1706204 2985857 3412408 5971714 11943428 23886856 425271347 850542694 1701085388 2976899429 3402170776 5953798858 11907597716 23815195432