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13902401 is a prime number
BaseRepresentation
bin110101000010…
…001001000001
3222011022111202
4311002021001
512024334101
61213550545
7226111532
oct65021101
928138452
1013902401
117936097
1247a5455
132b59b96
141bbc689
15134936b
hexd42241

13902401 has 2 divisors, whose sum is σ = 13902402. Its totient is φ = 13902400.

The previous prime is 13902367. The next prime is 13902407. The reversal of 13902401 is 10420931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13868176 + 34225 = 3724^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 13902401 - 26 = 13902337 is a prime.

It is not a weakly prime, because it can be changed into another prime (13902407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951200 + 6951201.

It is an arithmetic number, because the mean of its divisors is an integer number (6951201).

Almost surely, 213902401 is an apocalyptic number.

It is an amenable number.

13902401 is a deficient number, since it is larger than the sum of its proper divisors (1).

13902401 is an equidigital number, since it uses as much as digits as its factorization.

13902401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13902401 is about 3728.5923617365. The cubic root of 13902401 is about 240.4528544651.

The spelling of 13902401 in words is "thirteen million, nine hundred two thousand, four hundred one".