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23202440947 = 723115274813
BaseRepresentation
bin10101100110111110…
…010010011011110011
32012220000111010100201
4111212332102123303
5340004311102242
614354204500031
71450656331300
oct254676223363
965800433321
1023202440947
11992719a334
1245b654a617
132259cbc4ca
1411a17480a7
1590be9c4b7
hex566f926f3

23202440947 has 12 divisors (see below), whose sum is σ = 27861260736. Its totient is φ = 19246263120.

The previous prime is 23202440941. The next prime is 23202440981. The reversal of 23202440947 is 74904420232.

It is not a de Polignac number, because 23202440947 - 27 = 23202440819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23202440941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7635888 + ... + 7638925.

It is an arithmetic number, because the mean of its divisors is an integer number (2321771728).

Almost surely, 223202440947 is an apocalyptic number.

23202440947 is a deficient number, since it is larger than the sum of its proper divisors (4658819789).

23202440947 is a wasteful number, since it uses less digits than its factorization.

23202440947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274858 (or 15274851 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 23202440947 in words is "twenty-three billion, two hundred two million, four hundred forty thousand, nine hundred forty-seven".

Divisors: 1 7 31 49 217 1519 15274813 106923691 473519203 748465837 3314634421 23202440947