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13648401 = 3213315371
BaseRepresentation
bin110100000100…
…001000010001
3221200102002100
4310010020101
511443222101
61204311013
7224003154
oct64041021
927612070
1013648401
117782278
1246a2469
132a9b3a0
141b53c9b
1512e8e86
hexd04211

13648401 has 48 divisors (see below), whose sum is σ = 22643712. Its totient is φ = 7862400.

The previous prime is 13648391. The next prime is 13648429. The reversal of 13648401 is 10484631.

13648401 is a `hidden beast` number, since 13 + 648 + 4 + 0 + 1 = 666.

It is not a de Polignac number, because 13648401 - 27 = 13648273 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13640401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192196 + ... + 192266.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 213648401 is an apocalyptic number.

It is an amenable number.

13648401 is a deficient number, since it is larger than the sum of its proper divisors (8995311).

13648401 is a wasteful number, since it uses less digits than its factorization.

13648401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 13648401 is about 3694.3742365927. The cubic root of 13648401 is about 238.9794687171.

The spelling of 13648401 in words is "thirteen million, six hundred forty-eight thousand, four hundred one".

Divisors: 1 3 9 13 31 39 53 71 93 117 159 213 279 403 477 639 689 923 1209 1643 2067 2201 2769 3627 3763 4929 6201 6603 8307 11289 14787 19809 21359 28613 33867 48919 64077 85839 116653 146757 192231 257517 349959 440271 1049877 1516489 4549467 13648401