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13397648 = 241176123
BaseRepresentation
bin110011000110…
…111010010000
3221012200010012
4303012322100
511412211043
61155054052
7221610125
oct63067220
927180105
1013397648
117620940
1245a1328
132a11204
141aca74c
151299a18
hexcc6e90

13397648 has 20 divisors (see below), whose sum is σ = 28318128. Its totient is φ = 6089760.

The previous prime is 13397647. The next prime is 13397653. The reversal of 13397648 is 84679331.

It is not an unprimeable number, because it can be changed into a prime (13397647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37886 + ... + 38237.

Almost surely, 213397648 is an apocalyptic number.

It is an amenable number.

13397648 is an abundant number, since it is smaller than the sum of its proper divisors (14920480).

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

13397648 is a wasteful number, since it uses less digits than its factorization.

13397648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76142 (or 76136 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 13397648 is about 3660.2797707279. The cubic root of 13397648 is about 237.5068762552.

The spelling of 13397648 in words is "thirteen million, three hundred ninety-seven thousand, six hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 44 88 176 76123 152246 304492 608984 837353 1217968 1674706 3349412 6698824 13397648