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12492975 = 3521119797
BaseRepresentation
bin101111101010…
…000010101111
3212111201010210
4233222002233
511144233400
61123433503
7211121445
oct57520257
925451123
1012492975
117063180
124225893
1327854c1
141932b95
15116b950
hexbea0af

12492975 has 48 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 5731200.

The previous prime is 12492967. The next prime is 12492989. The reversal of 12492975 is 57929421.

It is not a de Polignac number, because 12492975 - 23 = 12492967 is a prime.

Its product of digits (45360) is a multiple of the sum of its prime factors (840).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15277 + ... + 16073.

It is an arithmetic number, because the mean of its divisors is an integer number (494760).

Almost surely, 212492975 is an apocalyptic number.

12492975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12492975 is a deficient number, since it is larger than the sum of its proper divisors (11255505).

12492975 is a wasteful number, since it uses less digits than its factorization.

12492975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 835 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 12492975 is about 3534.5402812813. The cubic root of 12492975 is about 232.0359573181.

It can be divided in two parts, 1249 and 2975, that added together give a palindrome (4224).

The spelling of 12492975 in words is "twelve million, four hundred ninety-two thousand, nine hundred seventy-five".

Divisors: 1 3 5 11 15 19 25 33 55 57 75 95 165 209 275 285 475 627 797 825 1045 1425 2391 3135 3985 5225 8767 11955 15143 15675 19925 26301 43835 45429 59775 75715 131505 166573 219175 227145 378575 499719 657525 832865 1135725 2498595 4164325 12492975