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13613874 = 232268979
BaseRepresentation
bin110011111011…
…101100110010
3221121122201120
4303323230302
511441120444
61203443110
7223500411
oct63735462
927548646
1013613874
11775933a
124686496
132a88761
141b45478
1512ddb19
hexcfbb32

13613874 has 8 divisors (see below), whose sum is σ = 27227760. Its totient is φ = 4537956.

The previous prime is 13613869. The next prime is 13613893. The reversal of 13613874 is 47831631.

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

13613874 is an admirable number.

It is a Curzon number.

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, 1134484 + ... + 1134495.

It is an arithmetic number, because the mean of its divisors is an integer number (3403470).

Almost surely, 213613874 is an apocalyptic number.

13613874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13613874 is a wasteful number, since it uses less digits than its factorization.

13613874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268984.

The product of its digits is 12096, while the sum is 33.

The square root of 13613874 is about 3689.6983616551. The cubic root of 13613874 is about 238.7777793577. Note that the first 5 decimals are identical.

The spelling of 13613874 in words is "thirteen million, six hundred thirteen thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 2268979 4537958 6806937 13613874