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13902541 is a prime number
BaseRepresentation
bin110101000010…
…001011001101
3222011022200221
4311002023031
512024340131
61213551341
7226112122
oct65021315
928138627
1013902541
117936204
1247a5551
132b59c73
141bbc749
151349411
hexd422cd

13902541 has 2 divisors, whose sum is σ = 13902542. Its totient is φ = 13902540.

The previous prime is 13902533. The next prime is 13902587. The reversal of 13902541 is 14520931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 3437316 = 3235^2 + 1854^2 .

It is an emirp because it is prime and its reverse (14520931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13902541 - 23 = 13902533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13902041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951270 + 6951271.

It is an arithmetic number, because the mean of its divisors is an integer number (6951271).

Almost surely, 213902541 is an apocalyptic number.

It is an amenable number.

13902541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13902541 is an equidigital number, since it uses as much as digits as its factorization.

13902541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 13902541 is about 3728.6111355302. The cubic root of 13902541 is about 240.4536615987.

The spelling of 13902541 in words is "thirteen million, nine hundred two thousand, five hundred forty-one".