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12905263 = 713713457
BaseRepresentation
bin110001001110…
…101100101111
3220021122200201
4301032230233
511300432023
61140334331
7214456450
oct61165457
926248621
1012905263
117314a08
1243a43a7
13289b067
1419dd127
1511edbad
hexc4eb2f

12905263 has 8 divisors (see below), whose sum is σ = 14857632. Its totient is φ = 10980096.

The previous prime is 12905257. The next prime is 12905287. The reversal of 12905263 is 36250921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12905263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905063) 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, 5770 + ... + 7687.

It is an arithmetic number, because the mean of its divisors is an integer number (1857204).

Almost surely, 212905263 is an apocalyptic number.

12905263 is a deficient number, since it is larger than the sum of its proper divisors (1952369).

12905263 is a wasteful number, since it uses less digits than its factorization.

12905263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13601.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 12905263 is about 3592.3895946849. The cubic root of 12905263 is about 234.5609002845.

The spelling of 12905263 in words is "twelve million, nine hundred five thousand, two hundred sixty-three".

Divisors: 1 7 137 959 13457 94199 1843609 12905263