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13253051 = 719251397
BaseRepresentation
bin110010100011…
…100110111011
3220221022202202
4302203212323
511343044201
61152020415
7220435430
oct62434673
926838682
1013253051
117532239
12453170b
132990456
141a8db87
15126bc6b
hexca39bb

13253051 has 16 divisors (see below), whose sum is σ = 16047360. Its totient is φ = 10692000.

The previous prime is 13253033. The next prime is 13253057. The reversal of 13253051 is 15035231.

It is a cyclic number.

It is not a de Polignac number, because 13253051 - 214 = 13236667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13253057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33185 + ... + 33581.

It is an arithmetic number, because the mean of its divisors is an integer number (1002960).

Almost surely, 213253051 is an apocalyptic number.

13253051 is a deficient number, since it is larger than the sum of its proper divisors (2794309).

13253051 is a wasteful number, since it uses less digits than its factorization.

13253051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13253051 is about 3640.4740075985. The cubic root of 13253051 is about 236.6493357231.

Adding to 13253051 its reverse (15035231), we get a palindrome (28288282).

The spelling of 13253051 in words is "thirteen million, two hundred fifty-three thousand, fifty-one".

Divisors: 1 7 19 133 251 397 1757 2779 4769 7543 33383 52801 99647 697529 1893293 13253051