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23981070390 = 235799369013
BaseRepresentation
bin10110010101011000…
…100001100000110110
32021220021121121011020
4112111120201200312
5343103123223030
615003341322010
71506162510054
oct262530414066
967807547136
1023981070390
11a196764142
124793266306
1323523cc1a4
141236d0d1d4
15955502510
hex595621836

23981070390 has 16 divisors (see below), whose sum is σ = 57554569008. Its totient is φ = 6394952096.

The previous prime is 23981070389. The next prime is 23981070479. The reversal of 23981070390 is 9307018932.

It is a congruent 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, 399684477 + ... + 399684536.

It is an arithmetic number, because the mean of its divisors is an integer number (3597160563).

Almost surely, 223981070390 is an apocalyptic number.

23981070390 is an abundant number, since it is smaller than the sum of its proper divisors (33573498618).

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

23981070390 is a wasteful number, since it uses less digits than its factorization.

23981070390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799369023.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 23981070390 in words is "twenty-three billion, nine hundred eighty-one million, seventy thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 799369013 1598738026 2398107039 3996845065 4796214078 7993690130 11990535195 23981070390