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15140008 = 2313145577
BaseRepresentation
bin111001110000…
…010010101000
31001111012012001
4321300102220
512333440013
61300300344
7242454652
oct71602250
931435161
1015140008
118600a04
1250a16b4
1331a12b0
1420216d2
1514e0ddd
hexe704a8

15140008 has 16 divisors (see below), whose sum is σ = 30571380. Its totient is φ = 6987648.

The previous prime is 15139987. The next prime is 15140011. The reversal of 15140008 is 80004151.

It can be written as a sum of positive squares in 2 ways, for example, as 15038884 + 101124 = 3878^2 + 318^2 .

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, 72685 + ... + 72892.

Almost surely, 215140008 is an apocalyptic number.

It is an amenable number.

15140008 is an abundant number, since it is smaller than the sum of its proper divisors (15431372).

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

15140008 is a wasteful number, since it uses less digits than its factorization.

15140008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145596 (or 145592 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 15140008 is about 3891.0163196779. The cubic root of 15140008 is about 247.3861422359.

Adding to 15140008 its reverse (80004151), we get a palindrome (95144159).

The spelling of 15140008 in words is "fifteen million, one hundred forty thousand, eight".

Divisors: 1 2 4 8 13 26 52 104 145577 291154 582308 1164616 1892501 3785002 7570004 15140008