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13387874 = 217393761
BaseRepresentation
bin110011000100…
…100001100010
3221012011201012
4303010201202
511411402444
61154540522
7221536463
oct63044142
927164635
1013387874
117614565
124597742
132a09926
141ac6d6a
151296b9e
hexcc4862

13387874 has 8 divisors (see below), whose sum is σ = 21263148. Its totient is φ = 6300160.

The previous prime is 13387859. The next prime is 13387883. The reversal of 13387874 is 47878331.

It can be written as a sum of positive squares in 2 ways, for example, as 10843849 + 2544025 = 3293^2 + 1595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 196847 + ... + 196914.

Almost surely, 213387874 is an apocalyptic number.

13387874 is a deficient number, since it is larger than the sum of its proper divisors (7875274).

13387874 is a wasteful number, since it uses less digits than its factorization.

13387874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393780.

The product of its digits is 112896, while the sum is 41.

The square root of 13387874 is about 3658.9443832887. The cubic root of 13387874 is about 237.4491059922.

The spelling of 13387874 in words is "thirteen million, three hundred eighty-seven thousand, eight hundred seventy-four".

Divisors: 1 2 17 34 393761 787522 6693937 13387874