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13679752 = 231709969
BaseRepresentation
bin110100001011…
…110010001000
3221202000002111
4310023302020
512000223002
61205112104
7224163442
oct64136210
927660074
1013679752
1177a3889
1246b8634
132aac738
141b61492
1513033d7
hexd0bc88

13679752 has 8 divisors (see below), whose sum is σ = 25649550. Its totient is φ = 6839872.

The previous prime is 13679749. The next prime is 13679759. The reversal of 13679752 is 25797631.

It can be written as a sum of positive squares in only one way, i.e., 13498276 + 181476 = 3674^2 + 426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×136797522 = 374271229563008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13679759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854977 + ... + 854992.

Almost surely, 213679752 is an apocalyptic number.

It is an amenable number.

13679752 is a deficient number, since it is larger than the sum of its proper divisors (11969798).

13679752 is a wasteful number, since it uses less digits than its factorization.

13679752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709975 (or 1709971 counting only the distinct ones).

The product of its digits is 79380, while the sum is 40.

The square root of 13679752 is about 3698.6148758691. The cubic root of 13679752 is about 239.1623110383.

The spelling of 13679752 in words is "thirteen million, six hundred seventy-nine thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 1709969 3419938 6839876 13679752