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12202397 = 23530539
BaseRepresentation
bin101110100011…
…000110011101
3211221221112122
4232203012131
511110434042
61113312325
7205501334
oct56430635
924857478
1012202397
116984929
1241056a5
1326b316c
141898d1b
1511107d2
hexba319d

12202397 has 4 divisors (see below), whose sum is σ = 12732960. Its totient is φ = 11671836.

The previous prime is 12202381. The next prime is 12202423. The reversal of 12202397 is 79320221.

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 12202397 - 24 = 12202381 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 (12202367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265247 + ... + 265292.

It is an arithmetic number, because the mean of its divisors is an integer number (3183240).

Almost surely, 212202397 is an apocalyptic number.

It is an amenable number.

12202397 is a deficient number, since it is larger than the sum of its proper divisors (530563).

12202397 is an equidigital number, since it uses as much as digits as its factorization.

12202397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530562.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12202397 is about 3493.1929520140. The cubic root of 12202397 is about 230.2228275298. Note that the first 3 decimals are identical.

The spelling of 12202397 in words is "twelve million, two hundred two thousand, three hundred ninety-seven".

Divisors: 1 23 530539 12202397