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13901441 is a prime number
BaseRepresentation
bin110101000001…
…111010000001
3222011021012012
4311001322001
512024321231
61213542305
7226105661
oct65017201
928137165
1013901441
1179353a4
1247a4995
132b59608
141bbc1a1
151348e2b
hexd41e81

13901441 has 2 divisors, whose sum is σ = 13901442. Its totient is φ = 13901440.

The previous prime is 13901431. The next prime is 13901443. The reversal of 13901441 is 14410931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12931216 + 970225 = 3596^2 + 985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13901441 is a prime.

Together with 13901443, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p904145 and since 13901441 and 904145 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13901443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6950720 + 6950721.

It is an arithmetic number, because the mean of its divisors is an integer number (6950721).

Almost surely, 213901441 is an apocalyptic number.

It is an amenable number.

13901441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13901441 is an equidigital number, since it uses as much as digits as its factorization.

13901441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 13901441 is about 3728.4636246046. The cubic root of 13901441 is about 240.4473196884.

The spelling of 13901441 in words is "thirteen million, nine hundred one thousand, four hundred forty-one".