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13842879 = 317271429
BaseRepresentation
bin110100110011…
…100110111111
3222001021212020
4310303212333
512020433004
61212411223
7225443151
oct64634677
928037766
1013842879
1178a53a6
124776b13
132b38a6b
141ba4ad1
1513368d9
hexd339bf

13842879 has 8 divisors (see below), whose sum is σ = 19542960. Its totient is φ = 8685696.

The previous prime is 13842877. The next prime is 13842883. The reversal of 13842879 is 97824831.

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

It is not a de Polignac number, because 13842879 - 21 = 13842877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13842879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13842877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135664 + ... + 135765.

It is an arithmetic number, because the mean of its divisors is an integer number (2442870).

Almost surely, 213842879 is an apocalyptic number.

13842879 is a deficient number, since it is larger than the sum of its proper divisors (5700081).

13842879 is a wasteful number, since it uses less digits than its factorization.

13842879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271449.

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

The square root of 13842879 is about 3720.6019674241. The cubic root of 13842879 is about 240.1092037753.

The spelling of 13842879 in words is "thirteen million, eight hundred forty-two thousand, eight hundred seventy-nine".

Divisors: 1 3 17 51 271429 814287 4614293 13842879