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12108054 = 2371915173
BaseRepresentation
bin101110001100…
…000100010110
3211210011010110
4232030010112
511044424204
61111303450
7204626310
oct56140426
924704113
1012108054
11691aa62
12407ab86
13267c23a
1418727b0
1510e2889
hexb8c116

12108054 has 32 divisors (see below), whose sum is σ = 29134080. Its totient is φ = 3277152.

The previous prime is 12108043. The next prime is 12108067. The reversal of 12108054 is 45080121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12108054.

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, 6789 + ... + 8384.

It is an arithmetic number, because the mean of its divisors is an integer number (910440).

Almost surely, 212108054 is an apocalyptic number.

12108054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12108054 is an abundant number, since it is smaller than the sum of its proper divisors (17026026).

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

12108054 is a wasteful number, since it uses less digits than its factorization.

12108054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15204.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12108054 is about 3479.6629147088. The cubic root of 12108054 is about 229.6279681802.

Adding to 12108054 its reverse (45080121), we get a palindrome (57188175).

The spelling of 12108054 in words is "twelve million, one hundred eight thousand, fifty-four".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 15173 30346 45519 91038 106211 212422 288287 318633 576574 637266 864861 1729722 2018009 4036018 6054027 12108054