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13862401 = 71980343
BaseRepresentation
bin110100111000…
…011000000001
3222002021122021
4310320120001
512022044101
61213041441
7225554110
oct64703001
928067567
1013862401
117909033
124786281
132b44907
141babc77
15133c5a1
hexd38601

13862401 has 4 divisors (see below), whose sum is σ = 15842752. Its totient is φ = 11882052.

The previous prime is 13862393. The next prime is 13862413. The reversal of 13862401 is 10426831.

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 not a de Polignac number, because 13862401 - 23 = 13862393 is a prime.

It is a super-2 number, since 2×138624012 = 384332322969602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13862441) 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, 990165 + ... + 990178.

It is an arithmetic number, because the mean of its divisors is an integer number (3960688).

Almost surely, 213862401 is an apocalyptic number.

It is an amenable number.

13862401 is a deficient number, since it is larger than the sum of its proper divisors (1980351).

13862401 is an equidigital number, since it uses as much as digits as its factorization.

13862401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980350.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13862401 is about 3723.2245433226. The cubic root of 13862401 is about 240.2220225542. Note that the first 3 decimals are identical.

The spelling of 13862401 in words is "thirteen million, eight hundred sixty-two thousand, four hundred one".

Divisors: 1 7 1980343 13862401