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13813494 = 2319121171
BaseRepresentation
bin110100101100…
…011011110110
3221222210112220
4310230123312
512014012434
61212023210
7225261402
oct64543366
927883486
1013813494
117885312
124761b06
132b28586
141b98102
15132cd49
hexd2c6f6

13813494 has 16 divisors (see below), whose sum is σ = 29081280. Its totient is φ = 4362120.

The previous prime is 13813487. The next prime is 13813517. The reversal of 13813494 is 49431831.

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, 60472 + ... + 60699.

It is an arithmetic number, because the mean of its divisors is an integer number (1817580).

Almost surely, 213813494 is an apocalyptic number.

13813494 is an abundant number, since it is smaller than the sum of its proper divisors (15267786).

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

13813494 is a wasteful number, since it uses less digits than its factorization.

13813494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121195.

The product of its digits is 10368, while the sum is 33.

The square root of 13813494 is about 3716.6509117753. The cubic root of 13813494 is about 239.9391859804.

The spelling of 13813494 in words is "thirteen million, eight hundred thirteen thousand, four hundred ninety-four".

Divisors: 1 2 3 6 19 38 57 114 121171 242342 363513 727026 2302249 4604498 6906747 13813494