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13698047 = 112791433
BaseRepresentation
bin110100010000…
…001111111111
3221202221012002
4310100033333
512001314142
61205332515
7224300666
oct64201777
927687162
1013698047
117806600
12470713b
132ab7b6c
141b67ddd
151308a32
hexd103ff

13698047 has 12 divisors (see below), whose sum is σ = 15257760. Its totient is φ = 12286560.

The previous prime is 13698023. The next prime is 13698053. The reversal of 13698047 is 74089631.

It is not a de Polignac number, because 13698047 - 28 = 13697791 is a prime.

It is a super-2 number, since 2×136980472 = 375272983228418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13698047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13698067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8843 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (1271480).

Almost surely, 213698047 is an apocalyptic number.

13698047 is a deficient number, since it is larger than the sum of its proper divisors (1559713).

13698047 is a wasteful number, since it uses less digits than its factorization.

13698047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 13698047 is about 3701.0872726808. The cubic root of 13698047 is about 239.2688803526.

The spelling of 13698047 in words is "thirteen million, six hundred ninety-eight thousand, forty-seven".

Divisors: 1 11 79 121 869 1433 9559 15763 113207 173393 1245277 13698047