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13376521 is a prime number
BaseRepresentation
bin110011000001…
…110000001001
3221011121010201
4303001300021
511411022041
61154412201
7221461414
oct63016011
927147121
1013376521
117606a84
124591061
132a04702
141ac2b7b
151293631
hexcc1c09

13376521 has 2 divisors, whose sum is σ = 13376522. Its totient is φ = 13376520.

The previous prime is 13376479. The next prime is 13376527. The reversal of 13376521 is 12567331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13220496 + 156025 = 3636^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 13376521 - 219 = 12852233 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13376521.

It is not a weakly prime, because it can be changed into another prime (13376527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6688260 + 6688261.

It is an arithmetic number, because the mean of its divisors is an integer number (6688261).

Almost surely, 213376521 is an apocalyptic number.

It is an amenable number.

13376521 is a deficient number, since it is larger than the sum of its proper divisors (1).

13376521 is an equidigital number, since it uses as much as digits as its factorization.

13376521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 13376521 is about 3657.3926505094. The cubic root of 13376521 is about 237.3819675736.

The spelling of 13376521 in words is "thirteen million, three hundred seventy-six thousand, five hundred twenty-one".