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12638201 = 233714851
BaseRepresentation
bin110000001101…
…011111111001
3212210002100112
4300031133321
511213410301
61130514105
7212265032
oct60153771
925702315
1012638201
1171522a4
124295935
132806634
14196da89
1511999bb
hexc0d7f9

12638201 has 8 divisors (see below), whose sum is σ = 13545024. Its totient is φ = 11761200.

The previous prime is 12638189. The next prime is 12638207. The reversal of 12638201 is 10283621.

12638201 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12638201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12638207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6575 + ... + 8276.

It is an arithmetic number, because the mean of its divisors is an integer number (1693128).

Almost surely, 212638201 is an apocalyptic number.

It is an amenable number.

12638201 is a deficient number, since it is larger than the sum of its proper divisors (906823).

12638201 is a wasteful number, since it uses less digits than its factorization.

12638201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14911.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12638201 is about 3555.0247537816. The cubic root of 12638201 is about 232.9316051164.

The spelling of 12638201 in words is "twelve million, six hundred thirty-eight thousand, two hundred one".

Divisors: 1 23 37 851 14851 341573 549487 12638201