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13090252 = 22742947
BaseRepresentation
bin110001111011…
…110111001100
3220122001110011
4301323313030
511322342002
61144323004
7216160000
oct61736714
926561404
1013090252
11743099a
124473464
132934316
141a4a700
1512388d7
hexc7bdcc

13090252 has 60 divisors (see below), whose sum is σ = 28234080. Its totient is φ = 5301408.

The previous prime is 13090219. The next prime is 13090261. The reversal of 13090252 is 25209031.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 278493 + ... + 278539.

It is an arithmetic number, because the mean of its divisors is an integer number (470568).

Almost surely, 213090252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13090252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14117040).

13090252 is an abundant number, since it is smaller than the sum of its proper divisors (15143828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13090252 is an equidigital number, since it uses as much as digits as its factorization.

13090252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13090252 is about 3618.0453286270. The cubic root of 13090252 is about 235.6763494154.

Adding to 13090252 its reverse (25209031), we get a palindrome (38299283).

The spelling of 13090252 in words is "thirteen million, ninety thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 29 47 49 58 94 98 116 188 196 203 329 343 406 658 686 812 1316 1363 1372 1421 2303 2401 2726 2842 4606 4802 5452 5684 9212 9541 9604 9947 16121 19082 19894 32242 38164 39788 64484 66787 69629 112847 133574 139258 225694 267148 278516 451388 467509 935018 1870036 3272563 6545126 13090252