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12613401 = 3551907
BaseRepresentation
bin110000000111…
…011100011001
3212201211100000
4300013130121
511212112101
61130203213
7212132523
oct60073431
925654300
1012613401
1171356a9
124283509
1327c8268
141964a13
151192486
hexc07719

12613401 has 12 divisors (see below), whose sum is σ = 18894512. Its totient is φ = 8408772.

The previous prime is 12613387. The next prime is 12613409. The reversal of 12613401 is 10431621.

It is a happy number.

12613401 is a `hidden beast` number, since 1 + 261 + 3 + 401 = 666.

It is not a de Polignac number, because 12613401 - 211 = 12611353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613409) 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 11 ways as a sum of consecutive naturals, for example, 25711 + ... + 26196.

Almost surely, 212613401 is an apocalyptic number.

It is an amenable number.

12613401 is a deficient number, since it is larger than the sum of its proper divisors (6281111).

12613401 is an frugal number, since it uses more digits than its factorization.

12613401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51922 (or 51910 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12613401 is about 3551.5350202412. The cubic root of 12613401 is about 232.7791444278.

The spelling of 12613401 in words is "twelve million, six hundred thirteen thousand, four hundred one".

Divisors: 1 3 9 27 81 243 51907 155721 467163 1401489 4204467 12613401