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12210525361 = 23530892407
BaseRepresentation
bin10110101111100110…
…11101010010110001
31011111222020221212001
423113303131102301
5200001343302421
65335345534001
7611405516206
oct132763352261
934458227761
1012210525361
1151a6583481
122449344301
1311c7965848
1483b97dcad
154b6ea8691
hex2d7cdd4b1

12210525361 has 4 divisors (see below), whose sum is σ = 12741417792. Its totient is φ = 11679632932.

The previous prime is 12210525347. The next prime is 12210525433. The reversal of 12210525361 is 16352501221.

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 12210525361 - 213 = 12210517169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210525461) 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, 265446181 + ... + 265446226.

It is an arithmetic number, because the mean of its divisors is an integer number (3185354448).

Almost surely, 212210525361 is an apocalyptic number.

It is an amenable number.

12210525361 is a deficient number, since it is larger than the sum of its proper divisors (530892431).

12210525361 is an equidigital number, since it uses as much as digits as its factorization.

12210525361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530892430.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 12210525361 in words is "twelve billion, two hundred ten million, five hundred twenty-five thousand, three hundred sixty-one".

Divisors: 1 23 530892407 12210525361