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12913461 = 3211130439
BaseRepresentation
bin110001010000…
…101100110101
3220022001221100
4301100230311
511301212321
61140440313
7214522401
oct61205465
926261840
1012913461
117320090
1243a9099
1328a1a02
141a02101
151201326
hexc50b35

12913461 has 12 divisors (see below), whose sum is σ = 20348640. Its totient is φ = 7826280.

The previous prime is 12913457. The next prime is 12913471. The reversal of 12913461 is 16431921.

It is not a de Polignac number, because 12913461 - 22 = 12913457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12913451) 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, 65121 + ... + 65318.

It is an arithmetic number, because the mean of its divisors is an integer number (1695720).

Almost surely, 212913461 is an apocalyptic number.

12913461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12913461 is a deficient number, since it is larger than the sum of its proper divisors (7435179).

12913461 is a wasteful number, since it uses less digits than its factorization.

12913461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130456 (or 130453 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 12913461 is about 3593.5304367711. The cubic root of 12913461 is about 234.6105576278.

The spelling of 12913461 in words is "twelve million, nine hundred thirteen thousand, four hundred sixty-one".

Divisors: 1 3 9 11 33 99 130439 391317 1173951 1434829 4304487 12913461