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13487982 = 2323432273
BaseRepresentation
bin110011011100…
…111101101110
3221101021000220
4303130331232
511423103412
61201032210
7222434364
oct63347556
927337026
1013487982
1176827a2
124625666
132a43371
141b11634
1512b668c
hexcdcf6e

13487982 has 32 divisors (see below), whose sum is σ = 28816128. Its totient is φ = 4198656.

The previous prime is 13487977. The next prime is 13487983. The reversal of 13487982 is 28978431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13487983) 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, 4798 + ... + 7070.

It is an arithmetic number, because the mean of its divisors is an integer number (900504).

Almost surely, 213487982 is an apocalyptic number.

13487982 is an abundant number, since it is smaller than the sum of its proper divisors (15328146).

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

13487982 is a wasteful number, since it uses less digits than its factorization.

13487982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344.

The product of its digits is 96768, while the sum is 42.

The square root of 13487982 is about 3672.5988073842. The cubic root of 13487982 is about 238.0394798334.

The spelling of 13487982 in words is "thirteen million, four hundred eighty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 23 43 46 69 86 129 138 258 989 1978 2273 2967 4546 5934 6819 13638 52279 97739 104558 156837 195478 293217 313674 586434 2247997 4495994 6743991 13487982