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23115031886 = 2174219161141
BaseRepresentation
bin10101100001110000…
…110110010101001110
32012122221000021200002
4111201300312111032
5334314422010021
614341403204302
71445545346342
oct254160662516
965587007602
1023115031886
119891918641
124591216692
132244b6697b
141193cb3622
1590448350b
hex561c3654e

23115031886 has 16 divisors (see below), whose sum is σ = 36721038960. Its totient is φ = 10875016320.

The previous prime is 23115031879. The next prime is 23115031897. The reversal of 23115031886 is 68813051132.

23115031886 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62876 + ... + 224016.

It is an arithmetic number, because the mean of its divisors is an integer number (2295064935).

Almost surely, 223115031886 is an apocalyptic number.

23115031886 is a deficient number, since it is larger than the sum of its proper divisors (13606007074).

23115031886 is a wasteful number, since it uses less digits than its factorization.

23115031886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165379.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 23115031886 in words is "twenty-three billion, one hundred fifteen million, thirty-one thousand, eight hundred eighty-six".

Divisors: 1 2 17 34 4219 8438 71723 143446 161141 322282 2739397 5478794 679853879 1359707758 11557515943 23115031886