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13631422 = 278311731
BaseRepresentation
bin110011111111…
…111110111110
3221122112210111
4303333332332
511442201142
61204100234
7223602520
oct63777676
927575714
1013631422
117770542
12469467a
132a9373c
141b4ba10
1512e3e17
hexcfffbe

13631422 has 16 divisors (see below), whose sum is σ = 23651712. Its totient is φ = 5771160.

The previous prime is 13631411. The next prime is 13631459. The reversal of 13631422 is 22413631.

It is a junction number, because it is equal to n+sod(n) for n = 13631393 and 13631402.

It is a congruent number.

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, 4704 + ... + 7027.

It is an arithmetic number, because the mean of its divisors is an integer number (1478232).

Almost surely, 213631422 is an apocalyptic number.

13631422 is a deficient number, since it is larger than the sum of its proper divisors (10020290).

13631422 is a wasteful number, since it uses less digits than its factorization.

13631422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11823.

The product of its digits is 864, while the sum is 22.

The square root of 13631422 is about 3692.0755680240. The cubic root of 13631422 is about 238.8803285036.

The spelling of 13631422 in words is "thirteen million, six hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 7 14 83 166 581 1162 11731 23462 82117 164234 973673 1947346 6815711 13631422