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12530504 = 237223759
BaseRepresentation
bin101111110011…
…001101001000
3212120121121202
4233303031020
511201434004
61124323332
7211336040
oct57631510
925517552
1012530504
117089398
124243548
1327995cc
141942720
151177b1e
hexbf3348

12530504 has 16 divisors (see below), whose sum is σ = 26851200. Its totient is φ = 5370192.

The previous prime is 12530503. The next prime is 12530509. The reversal of 12530504 is 40503521.

It is not an unprimeable number, because it can be changed into a prime (12530503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111824 + ... + 111935.

It is an arithmetic number, because the mean of its divisors is an integer number (1678200).

Almost surely, 212530504 is an apocalyptic number.

12530504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12530504 is an abundant number, since it is smaller than the sum of its proper divisors (14320696).

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

12530504 is a wasteful number, since it uses less digits than its factorization.

12530504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223772 (or 223768 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 12530504 is about 3539.8451943553. The cubic root of 12530504 is about 232.2680710261.

The spelling of 12530504 in words is "twelve million, five hundred thirty thousand, five hundred four".

Divisors: 1 2 4 7 8 14 28 56 223759 447518 895036 1566313 1790072 3132626 6265252 12530504