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12159086958 = 2331021220537
BaseRepresentation
bin10110101001011110…
…01111000101101110
31011101101110121122000
423110233033011232
5144400211240313
65330311233130
7610212351054
oct132457170556
934341417560
1012159086958
11517a53aaa7
1224340787a6
1311ba0c5815
14834bd01d4
154b26e7673
hex2d4bcf16e

12159086958 has 32 divisors (see below), whose sum is σ = 27046780320. Its totient is φ = 4049040960.

The previous prime is 12159086893. The next prime is 12159086981. The reversal of 12159086958 is 85968095121.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55135 + ... + 165402.

It is an arithmetic number, because the mean of its divisors is an integer number (845211885).

Almost surely, 212159086958 is an apocalyptic number.

12159086958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12159086958 is an abundant number, since it is smaller than the sum of its proper divisors (14887693362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12159086958 is a wasteful number, since it uses less digits than its factorization.

12159086958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221569 (or 221563 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 54.

The spelling of 12159086958 in words is "twelve billion, one hundred fifty-nine million, eighty-six thousand, nine hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 54 1021 2042 3063 6126 9189 18378 27567 55134 220537 441074 661611 1323222 1984833 3969666 5954499 11908998 225168277 450336554 675504831 1351009662 2026514493 4053028986 6079543479 12159086958