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23981070388 = 22112243242989
BaseRepresentation
bin10110010101011000…
…100001100000110100
32021220021121121011011
4112111120201200310
5343103123223023
615003341322004
71506162510052
oct262530414064
967807547134
1023981070388
11a196764140
124793266304
1323523cc1a2
141236d0d1d2
1595550250d
hex595621834

23981070388 has 24 divisors (see below), whose sum is σ = 45802643040. Its totient is φ = 10895581920.

The previous prime is 23981070329. The next prime is 23981070389. The reversal of 23981070388 is 88307018932.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23981070389) 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, 22803 + ... + 220186.

It is an arithmetic number, because the mean of its divisors is an integer number (1908443460).

Almost surely, 223981070388 is an apocalyptic number.

It is an amenable number.

23981070388 is a deficient number, since it is larger than the sum of its proper divisors (21821572652).

23981070388 is a wasteful number, since it uses less digits than its factorization.

23981070388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245247 (or 245245 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 23981070388 in words is "twenty-three billion, nine hundred eighty-one million, seventy thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 22 44 2243 4486 8972 24673 49346 98692 242989 485978 971956 2672879 5345758 10691516 545024327 1090048654 2180097308 5995267597 11990535194 23981070388