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12524020 = 225626201
BaseRepresentation
bin101111110001…
…100111110100
3212120021201121
4233301213310
511201232040
61124233324
7211311115
oct57614764
925507647
1012524020
117084533
12423b844
132796682
14194020c
151175c4a
hexbf19f4

12524020 has 12 divisors (see below), whose sum is σ = 26300484. Its totient is φ = 5009600.

The previous prime is 12524009. The next prime is 12524023. The reversal of 12524020 is 2042521.

It can be written as a sum of positive squares in 2 ways, for example, as 7806436 + 4717584 = 2794^2 + 2172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12523985 and 12524003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12524023) 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, 313081 + ... + 313120.

It is an arithmetic number, because the mean of its divisors is an integer number (2191707).

Almost surely, 212524020 is an apocalyptic number.

12524020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12524020 is an abundant number, since it is smaller than the sum of its proper divisors (13776464).

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

12524020 is a wasteful number, since it uses less digits than its factorization.

12524020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626210 (or 626208 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 12524020 is about 3538.9292165852. The cubic root of 12524020 is about 232.2280011823.

Adding to 12524020 its reverse (2042521), we get a palindrome (14566541).

The spelling of 12524020 in words is "twelve million, five hundred twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 626201 1252402 2504804 3131005 6262010 12524020