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23164642047 = 314249541901
BaseRepresentation
bin10101100100101110…
…000110001011111111
32012210101100202000110
4111210232012023333
5334420122021142
614350334401103
71450020131361
oct254456061377
965711322013
1023164642047
119907922478
1245a5960193
1322522167b1
14119a708d31
159089d299c
hex564b862ff

23164642047 has 8 divisors (see below), whose sum is σ = 30888414000. Its totient is φ = 15441982400.

The previous prime is 23164642037. The next prime is 23164642049. The reversal of 23164642047 is 74024646132.

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

It is a cyclic number.

It is not a de Polignac number, because 23164642047 - 27 = 23164641919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23164641996 and 23164642014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23164642049) 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, 228204 + ... + 313697.

It is an arithmetic number, because the mean of its divisors is an integer number (3861051750).

Almost surely, 223164642047 is an apocalyptic number.

23164642047 is a deficient number, since it is larger than the sum of its proper divisors (7723771953).

23164642047 is a wasteful number, since it uses less digits than its factorization.

23164642047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556153.

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 23164642047 in words is "twenty-three billion, one hundred sixty-four million, six hundred forty-two thousand, forty-seven".

Divisors: 1 3 14249 42747 541901 1625703 7721547349 23164642047