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12461217031 = 292231926893
BaseRepresentation
bin10111001101011111…
…10001010100000111
31012011102222102011201
423212233301110013
5201010032421111
65420303043331
7620541411544
oct134657612407
935142872151
1012461217031
11531503987a
1224b92a0547
13123788b003
14862d99bcb
154cdec76c1
hex2e6bf1507

12461217031 has 8 divisors (see below), whose sum is σ = 12948727680. Its totient is φ = 11977560672.

The previous prime is 12461217023. The next prime is 12461217077. The reversal of 12461217031 is 13071216421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12461217031 - 23 = 12461217023 is a prime.

It is a super-2 number, since 2×124612170312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12461217091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956980 + ... + 969913.

It is an arithmetic number, because the mean of its divisors is an integer number (1618590960).

Almost surely, 212461217031 is an apocalyptic number.

12461217031 is a deficient number, since it is larger than the sum of its proper divisors (487510649).

12461217031 is a wasteful number, since it uses less digits than its factorization.

12461217031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927145.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 12461217031 in words is "twelve billion, four hundred sixty-one million, two hundred seventeen thousand, thirty-one".

Divisors: 1 29 223 6467 1926893 55879897 429697139 12461217031