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12901929 = 317252979
BaseRepresentation
bin110001001101…
…111000101001
3220021111010020
4301031320221
511300330204
61140311053
7214443645
oct61157051
926244106
1012901929
117312457
1243a2489
1328996a1
1419dbc25
1511ecbd9
hexc4de29

12901929 has 8 divisors (see below), whose sum is σ = 18214560. Its totient is φ = 8095296.

The previous prime is 12901913. The next prime is 12901951. The reversal of 12901929 is 92910921.

12901929 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12901929 - 24 = 12901913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12901929.

It is not an unprimeable number, because it can be changed into a prime (12901979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126439 + ... + 126540.

It is an arithmetic number, because the mean of its divisors is an integer number (2276820).

Almost surely, 212901929 is an apocalyptic number.

It is an amenable number.

12901929 is a deficient number, since it is larger than the sum of its proper divisors (5312631).

12901929 is a wasteful number, since it uses less digits than its factorization.

12901929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252999.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 12901929 is about 3591.9255281812. The cubic root of 12901929 is about 234.5406993944.

The spelling of 12901929 in words is "twelve million, nine hundred one thousand, nine hundred twenty-nine".

Divisors: 1 3 17 51 252979 758937 4300643 12901929