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12252961 = 71750423
BaseRepresentation
bin101110101111…
…011100100001
3212001111220101
4232233130201
511114043321
61114342401
7206101630
oct56573441
925044811
1012252961
116a09916
12412aa01
132700196
1418ad517
151120791
hexbaf721

12252961 has 4 divisors (see below), whose sum is σ = 14003392. Its totient is φ = 10502532.

The previous prime is 12252953. The next prime is 12253013. The reversal of 12252961 is 16925221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12252961 - 23 = 12252953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12252901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875205 + ... + 875218.

It is an arithmetic number, because the mean of its divisors is an integer number (3500848).

Almost surely, 212252961 is an apocalyptic number.

It is an amenable number.

12252961 is a deficient number, since it is larger than the sum of its proper divisors (1750431).

12252961 is an equidigital number, since it uses as much as digits as its factorization.

12252961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750430.

The product of its digits is 2160, while the sum is 28.

The square root of 12252961 is about 3500.4229744418. The cubic root of 12252961 is about 230.5403865786.

It can be divided in two parts, 1225 and 2961, that added together give a triangular number (4186 = T91).

The spelling of 12252961 in words is "twelve million, two hundred fifty-two thousand, nine hundred sixty-one".

Divisors: 1 7 1750423 12252961