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12472615 = 52494523
BaseRepresentation
bin101111100101…
…000100100111
3212110200012201
4233211010213
511143110430
61123155331
7211005211
oct57450447
925420181
1012472615
117049951
124215b47
13277915c
1419295b1
1511658ca
hexbe5127

12472615 has 4 divisors (see below), whose sum is σ = 14967144. Its totient is φ = 9978088.

The previous prime is 12472583. The next prime is 12472619. The reversal of 12472615 is 51627421.

12472615 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12472615 - 25 = 12472583 is a prime.

It is a super-2 number, since 2×124726152 = 311132249876450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12472619) 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, 1247257 + ... + 1247266.

It is an arithmetic number, because the mean of its divisors is an integer number (3741786).

Almost surely, 212472615 is an apocalyptic number.

12472615 is a deficient number, since it is larger than the sum of its proper divisors (2494529).

12472615 is an equidigital number, since it uses as much as digits as its factorization.

12472615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494528.

The product of its digits is 3360, while the sum is 28.

The square root of 12472615 is about 3531.6589586199. The cubic root of 12472615 is about 231.9098378840.

The spelling of 12472615 in words is "twelve million, four hundred seventy-two thousand, six hundred fifteen".

Divisors: 1 5 2494523 12472615