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15069989 = 113761607
BaseRepresentation
bin111001011111…
…001100100101
31001100122010202
4321133030211
512324214424
61255000245
7242043554
oct71371445
931318122
1015069989
118563340
125069085
13317846c
142003d9b
1514ca2ae
hexe5f325

15069989 has 16 divisors (see below), whose sum is σ = 17189376. Its totient is φ = 13089600.

The previous prime is 15069979. The next prime is 15069997. The reversal of 15069989 is 98996051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15069989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15069949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24524 + ... + 25130.

It is an arithmetic number, because the mean of its divisors is an integer number (1074336).

Almost surely, 215069989 is an apocalyptic number.

It is an amenable number.

15069989 is a deficient number, since it is larger than the sum of its proper divisors (2119387).

15069989 is a wasteful number, since it uses less digits than its factorization.

15069989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 15069989 is about 3882.0083719642. The cubic root of 15069989 is about 247.0041851040.

The spelling of 15069989 in words is "fifteen million, sixty-nine thousand, nine hundred eighty-nine".

Divisors: 1 11 37 61 407 607 671 2257 6677 22459 24827 37027 247049 407297 1369999 15069989