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23290924945 = 519433683829
BaseRepresentation
bin10101101100001111…
…110100111110010001
32020010011222120120211
4111230033310332101
5340144434044240
614411045204121
71453112411161
oct255417647621
966104876524
1023290924945
119972135702
124620100641
1322724303c2
1411ad3bc5a1
15914b29bea
hex56c3f4f91

23290924945 has 32 divisors (see below), whose sum is σ = 29566857600. Its totient is φ = 17564304384.

The previous prime is 23290924933. The next prime is 23290924949. The reversal of 23290924945 is 54942909232.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23290924945 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23290924949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28094791 + ... + 28095619.

It is an arithmetic number, because the mean of its divisors is an integer number (923964300).

Almost surely, 223290924945 is an apocalyptic number.

It is an amenable number.

23290924945 is a deficient number, since it is larger than the sum of its proper divisors (6275932655).

23290924945 is a wasteful number, since it uses less digits than its factorization.

23290924945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 23290924945 in words is "twenty-three billion, two hundred ninety million, nine hundred twenty-four thousand, nine hundred forty-five".

Divisors: 1 5 19 95 433 683 829 2165 3415 4145 8227 12977 15751 41135 64885 78755 295739 358957 566207 1478695 1794785 2831035 5619041 6820183 10757933 28095205 34100915 53789665 245167631 1225838155 4658184989 23290924945