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15139000 = 235315139
BaseRepresentation
bin111001110000…
…000010111000
31001111010210201
4321300002320
512333422000
61300251544
7242452012
oct71600270
931433721
1015139000
118600178
1250a0bb4
1331a09b6
1420211b2
1514e096a
hexe700b8

15139000 has 32 divisors (see below), whose sum is σ = 35427600. Its totient is φ = 6055200.

The previous prime is 15138971. The next prime is 15139001. The reversal of 15139000 is 93151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15139001) 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, 6570 + ... + 8569.

Almost surely, 215139000 is an apocalyptic number.

15139000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15139000 is an abundant number, since it is smaller than the sum of its proper divisors (20288600).

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

15139000 is a wasteful number, since it uses less digits than its factorization.

15139000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15160 (or 15146 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 15139000 is about 3890.8867883813. The cubic root of 15139000 is about 247.3806519093.

The spelling of 15139000 in words is "fifteen million, one hundred thirty-nine thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 15139 30278 60556 75695 121112 151390 302780 378475 605560 756950 1513900 1892375 3027800 3784750 7569500 15139000