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13472987 = 112111347
BaseRepresentation
bin110011011001…
…010011011011
3221100111110112
4303121103123
511422113422
61200434535
7222342563
oct63312333
927314415
1013472987
117672500
124618a4b
132a395a8
141b09da3
1512b1ee2
hexcd94db

13472987 has 6 divisors (see below), whose sum is σ = 14809284. Its totient is φ = 12248060.

The previous prime is 13472947. The next prime is 13472999. The reversal of 13472987 is 78927431.

It is not a de Polignac number, because 13472987 - 214 = 13456603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13472947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55553 + ... + 55794.

It is an arithmetic number, because the mean of its divisors is an integer number (2468214).

Almost surely, 213472987 is an apocalyptic number.

13472987 is a deficient number, since it is larger than the sum of its proper divisors (1336297).

13472987 is a wasteful number, since it uses less digits than its factorization.

13472987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111369 (or 111358 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 13472987 is about 3670.5567697558. The cubic root of 13472987 is about 237.9512352130.

It can be divided in two parts, 1347 and 2987, that added together give a palindrome (4334).

The spelling of 13472987 in words is "thirteen million, four hundred seventy-two thousand, nine hundred eighty-seven".

Divisors: 1 11 121 111347 1224817 13472987