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12572961 = 34190987
BaseRepresentation
bin101111111101…
…100100100001
3212122202212020
4233331210201
511204313321
61125252053
7211603602
oct57754441
925582766
1012572961
117108285
124264029
1327b2a2b
141953da9
1511854c6
hexbfd921

12572961 has 4 divisors (see below), whose sum is σ = 16763952. Its totient is φ = 8381972.

The previous prime is 12572909. The next prime is 12572969. The reversal of 12572961 is 16927521.

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 12572961 - 218 = 12310817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12572969) 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, 2095491 + ... + 2095496.

It is an arithmetic number, because the mean of its divisors is an integer number (4190988).

Almost surely, 212572961 is an apocalyptic number.

It is an amenable number.

12572961 is a deficient number, since it is larger than the sum of its proper divisors (4190991).

12572961 is an equidigital number, since it uses as much as digits as its factorization.

12572961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190990.

The product of its digits is 7560, while the sum is 33.

The square root of 12572961 is about 3545.8371366999. The cubic root of 12572961 is about 232.5301059408.

The spelling of 12572961 in words is "twelve million, five hundred seventy-two thousand, nine hundred sixty-one".

Divisors: 1 3 4190987 12572961