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13479844 = 2271728319
BaseRepresentation
bin110011011010…
…111110100100
3221100211212111
4303122332210
511422323334
61200530404
7222401560
oct63327644
927324774
1013479844
117677674
124620a04
132a3c751
141b0c6a0
1512b4064
hexcdafa4

13479844 has 24 divisors (see below), whose sum is σ = 28546560. Its totient is φ = 5437056.

The previous prime is 13479821. The next prime is 13479871. The reversal of 13479844 is 44897431.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13479797 and 13479806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13684 + ... + 14635.

It is an arithmetic number, because the mean of its divisors is an integer number (1189440).

Almost surely, 213479844 is an apocalyptic number.

13479844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13479844 is an abundant number, since it is smaller than the sum of its proper divisors (15066716).

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

13479844 is a wasteful number, since it uses less digits than its factorization.

13479844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28347 (or 28345 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 13479844 is about 3671.4907054220. The cubic root of 13479844 is about 237.9915963419.

The spelling of 13479844 in words is "thirteen million, four hundred seventy-nine thousand, eight hundred forty-four".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 28319 56638 113276 198233 396466 481423 792932 962846 1925692 3369961 6739922 13479844