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13150257 = 34383419
BaseRepresentation
bin110010001010…
…100000110001
3220202002202120
4302022200301
511331302012
61145504453
7216526641
oct62124061
926662676
1013150257
117471a8a
1244a2129
132955723
141a64521
15124b58c
hexc8a831

13150257 has 4 divisors (see below), whose sum is σ = 17533680. Its totient is φ = 8766836.

The previous prime is 13150243. The next prime is 13150279. The reversal of 13150257 is 75205131.

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 a cyclic number.

It is not a de Polignac number, because 13150257 - 214 = 13133873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13150237) 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, 2191707 + ... + 2191712.

It is an arithmetic number, because the mean of its divisors is an integer number (4383420).

Almost surely, 213150257 is an apocalyptic number.

It is an amenable number.

13150257 is a deficient number, since it is larger than the sum of its proper divisors (4383423).

13150257 is an equidigital number, since it uses as much as digits as its factorization.

13150257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383422.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 13150257 is about 3626.3283083582. The cubic root of 13150257 is about 236.0359097421.

Adding to 13150257 its reverse (75205131), we get a palindrome (88355388).

The spelling of 13150257 in words is "thirteen million, one hundred fifty thousand, two hundred fifty-seven".

Divisors: 1 3 4383419 13150257