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23681596945 = 56570172089
BaseRepresentation
bin10110000011100010…
…000111111000010001
32021010102002202211011
4112003202013320101
5341444442100240
614513522450521
71465565152456
oct260342077021
967112082734
1023681596945
11a05270a326
12470ab03a41
132305356c76
14120923582d
159390996ea
hex583887e11

23681596945 has 8 divisors (see below), whose sum is σ = 28418743080. Its totient is φ = 18944726400.

The previous prime is 23681596943. The next prime is 23681596963. The reversal of 23681596945 is 54969518632.

It can be written as a sum of positive squares in 4 ways, for example, as 11081983441 + 12599613504 = 105271^2 + 112248^2 .

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

It is not a de Polignac number, because 23681596945 - 21 = 23681596943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23681596945.

It is not an unprimeable number, because it can be changed into a prime (23681596943) 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, 292461 + ... + 364549.

It is an arithmetic number, because the mean of its divisors is an integer number (3552342885).

Almost surely, 223681596945 is an apocalyptic number.

It is an amenable number.

23681596945 is a deficient number, since it is larger than the sum of its proper divisors (4737146135).

23681596945 is an equidigital number, since it uses as much as digits as its factorization.

23681596945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137795.

The product of its digits is 13996800, while the sum is 58.

The spelling of 23681596945 in words is "twenty-three billion, six hundred eighty-one million, five hundred ninety-six thousand, nine hundred forty-five".

Divisors: 1 5 65701 72089 328505 360445 4736319389 23681596945