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23008138791 = 311697216327
BaseRepresentation
bin10101011011011001…
…000101011000100111
32012101110212112220120
4111123121011120213
5334110040420131
614323024133023
71443106644561
oct253331053047
965343775816
1023008138791
119837549240
124561467173
13222897b811
141183a0a331
158e9dbb496
hex55b645627

23008138791 has 8 divisors (see below), whose sum is σ = 33466383744. Its totient is φ = 13944326520.

The previous prime is 23008138771. The next prime is 23008138801. The reversal of 23008138791 is 19783180032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23008138791 - 27 = 23008138663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23008138771) 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, 348608131 + ... + 348608196.

It is an arithmetic number, because the mean of its divisors is an integer number (4183297968).

Almost surely, 223008138791 is an apocalyptic number.

23008138791 is a deficient number, since it is larger than the sum of its proper divisors (10458244953).

23008138791 is a wasteful number, since it uses less digits than its factorization.

23008138791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697216341.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 23008138791 in words is "twenty-three billion, eight million, one hundred thirty-eight thousand, seven hundred ninety-one".

Divisors: 1 3 11 33 697216327 2091648981 7669379597 23008138791