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12532545 = 325278501
BaseRepresentation
bin101111110011…
…101101000001
3212120201102100
4233303231001
511202020140
61124341013
7211345014
oct57635501
925521370
1012532545
11708a983
124244769
13279a50c
14194337b
151178530
hexbf3b41

12532545 has 12 divisors (see below), whose sum is σ = 21723156. Its totient is φ = 6684000.

The previous prime is 12532543. The next prime is 12532561. The reversal of 12532545 is 54523521.

It is a happy number.

12532545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 10246401 = 1512^2 + 3201^2 .

It is not a de Polignac number, because 12532545 - 21 = 12532543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12532543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139206 + ... + 139295.

It is an arithmetic number, because the mean of its divisors is an integer number (1810263).

Almost surely, 212532545 is an apocalyptic number.

12532545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12532545 is a deficient number, since it is larger than the sum of its proper divisors (9190611).

12532545 is a wasteful number, since it uses less digits than its factorization.

12532545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278512 (or 278509 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 12532545 is about 3540.1334720601. The cubic root of 12532545 is about 232.2806811440.

The spelling of 12532545 in words is "twelve million, five hundred thirty-two thousand, five hundred forty-five".

Divisors: 1 3 5 9 15 45 278501 835503 1392505 2506509 4177515 12532545