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132987025 = 525319481
BaseRepresentation
bin1111110110100…
…11100010010001
3100021020102220101
413323103202101
5233021041100
621110212401
73203241163
oct773234221
9307212811
10132987025
1169082136
1238654101
1321723262
141393a933
15ba1d86a
hex7ed3891

132987025 has 6 divisors (see below), whose sum is σ = 164903942. Its totient is φ = 106389600.

The previous prime is 132986977. The next prime is 132987031. The reversal of 132987025 is 520789231.

It is a Cunningham number, because it is equal to 115322+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 132987024 = 1^2 + 11532^2 .

It is a de Polignac number, because none of the positive numbers 2k-132987025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2659716 + ... + 2659765.

Almost surely, 2132987025 is an apocalyptic number.

It is an amenable number.

132987025 is a deficient number, since it is larger than the sum of its proper divisors (31916917).

132987025 is an equidigital number, since it uses as much as digits as its factorization.

132987025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319491 (or 5319486 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 132987025 is about 11532.0000433576. Note that the first 4 decimals coincide. The cubic root of 132987025 is about 510.4302725421.

The spelling of 132987025 in words is "one hundred thirty-two million, nine hundred eighty-seven thousand, twenty-five".

Divisors: 1 5 25 5319481 26597405 132987025