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12202897 = 71743271
BaseRepresentation
bin101110100011…
…001110010001
3211221222020011
4232203032101
511110443042
61113314521
7205502650
oct56431621
924858204
1012202897
116985243
124105a41
1326b3465
141899197
151110a17
hexba3391

12202897 has 4 divisors (see below), whose sum is σ = 13946176. Its totient is φ = 10459620.

The previous prime is 12202873. The next prime is 12202907. The reversal of 12202897 is 79820221.

12202897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-12202897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12202837) 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, 871629 + ... + 871642.

It is an arithmetic number, because the mean of its divisors is an integer number (3486544).

Almost surely, 212202897 is an apocalyptic number.

It is an amenable number.

12202897 is a deficient number, since it is larger than the sum of its proper divisors (1743279).

12202897 is an equidigital number, since it uses as much as digits as its factorization.

12202897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743278.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12202897 is about 3493.2645190423. The cubic root of 12202897 is about 230.2259719896.

The spelling of 12202897 in words is "twelve million, two hundred two thousand, eight hundred ninety-seven".

Divisors: 1 7 1743271 12202897