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15314985 = 325748619
BaseRepresentation
bin111010011011…
…000000101001
31001211002012200
4322123000221
512410034420
61304130413
7244114050
oct72330051
931732180
1015314985
118710414
125166a09
133232b2a
142069397
151527b90
hexe9b029

15314985 has 24 divisors (see below), whose sum is σ = 30338880. Its totient is φ = 7000992.

The previous prime is 15314983. The next prime is 15314989. The reversal of 15314985 is 58941351.

15314985 is a `hidden beast` number, since 1 + 531 + 49 + 85 = 666.

It is not a de Polignac number, because 15314985 - 21 = 15314983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15314983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23995 + ... + 24624.

It is an arithmetic number, because the mean of its divisors is an integer number (1264120).

Almost surely, 215314985 is an apocalyptic number.

15314985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15314985 is a deficient number, since it is larger than the sum of its proper divisors (15023895).

15314985 is a wasteful number, since it uses less digits than its factorization.

15314985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48637 (or 48634 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 15314985 is about 3913.4364693962. The cubic root of 15314985 is about 248.3355294112.

The spelling of 15314985 in words is "fifteen million, three hundred fourteen thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 48619 145857 243095 340333 437571 729285 1020999 1701665 2187855 3062997 5104995 15314985