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23258397957 = 347419393683
BaseRepresentation
bin10101101010010011…
…101111110100000101
32020000220210000221120
4111222103233310011
5340113122213312
614403524104153
71452236056254
oct255223576405
966026700846
1023258397957
1199558396a3
124611235059
132268782172
1411a8d5279b
15911d5228c
hex56a4efd05

23258397957 has 16 divisors (see below), whose sum is σ = 31746677760. Its totient is φ = 15139434992.

The previous prime is 23258397937. The next prime is 23258397977. The reversal of 23258397957 is 75979385232.

It is an interprime number because it is at equal distance from previous prime (23258397937) and next prime (23258397977).

It is a cyclic number.

It is not a de Polignac number, because 23258397957 - 210 = 23258396933 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 23258397957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23258397907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137763 + ... + 255920.

It is an arithmetic number, because the mean of its divisors is an integer number (1984167360).

Almost surely, 223258397957 is an apocalyptic number.

It is an amenable number.

23258397957 is a deficient number, since it is larger than the sum of its proper divisors (8488279803).

23258397957 is a wasteful number, since it uses less digits than its factorization.

23258397957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394152.

The product of its digits is 28576800, while the sum is 60.

The spelling of 23258397957 in words is "twenty-three billion, two hundred fifty-eight million, three hundred ninety-seven thousand, nine hundred fifty-seven".

Divisors: 1 3 47 141 419 1257 19693 59079 393683 1181049 18503101 55509303 164953177 494859531 7752799319 23258397957