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15139112 = 2317111317
BaseRepresentation
bin111001110000…
…000100101000
31001111010221212
4321300010220
512333422422
61300252252
7242452232
oct71600450
931433855
1015139112
11860026a
1250a1088
1331a0a71
142021252
1514e09e2
hexe70128

15139112 has 16 divisors (see below), whose sum is σ = 30055860. Its totient is φ = 7124224.

The previous prime is 15139087. The next prime is 15139121. The reversal of 15139112 is 21193151.

It can be written as a sum of positive squares in 2 ways, for example, as 13586596 + 1552516 = 3686^2 + 1246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55523 + ... + 55794.

Almost surely, 215139112 is an apocalyptic number.

It is an amenable number.

15139112 is a deficient number, since it is larger than the sum of its proper divisors (14916748).

15139112 is a wasteful number, since it uses less digits than its factorization.

15139112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111340 (or 111336 counting only the distinct ones).

The product of its digits is 270, while the sum is 23.

The square root of 15139112 is about 3890.9011809605. The cubic root of 15139112 is about 247.3812619576.

It can be divided in two parts, 15139 and 112, that added together give a palindrome (15251).

The spelling of 15139112 in words is "fifteen million, one hundred thirty-nine thousand, one hundred twelve".

Divisors: 1 2 4 8 17 34 68 136 111317 222634 445268 890536 1892389 3784778 7569556 15139112