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13994128 = 241751449
BaseRepresentation
bin110101011000…
…100010010000
3222022222100001
4311120202100
512040303003
61215535344
7226643131
oct65304220
928288301
1013994128
117998aa5
12482a554
132b8c865
141c03c88
15136661d
hexd58890

13994128 has 20 divisors (see below), whose sum is σ = 28709100. Its totient is φ = 6585344.

The previous prime is 13994119. The next prime is 13994131. The reversal of 13994128 is 82149931.

It can be written as a sum of positive squares in 2 ways, for example, as 7683984 + 6310144 = 2772^2 + 2512^2 .

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, 25453 + ... + 25996.

It is an arithmetic number, because the mean of its divisors is an integer number (1435455).

Almost surely, 213994128 is an apocalyptic number.

It is an amenable number.

13994128 is an abundant number, since it is smaller than the sum of its proper divisors (14714972).

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

13994128 is a wasteful number, since it uses less digits than its factorization.

13994128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51474 (or 51468 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 13994128 is about 3740.8726254712. The cubic root of 13994128 is about 240.9805256212.

The spelling of 13994128 in words is "thirteen million, nine hundred ninety-four thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 51449 102898 205796 411592 823184 874633 1749266 3498532 6997064 13994128