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131137052 = 2253618571
BaseRepresentation
bin1111101000011…
…11111000011100
3100010202110012212
413310033320130
5232032341202
621002415552
73151434524
oct764177034
9303673185
10131137052
1168029232
1237b015b8
13212261b7
14135b8684
15b7a5652
hex7d0fe1c

131137052 has 12 divisors (see below), whose sum is σ = 233820216. Its totient is φ = 64331280.

The previous prime is 131137051. The next prime is 131137091. The reversal of 131137052 is 250731131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131137051) 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, 309074 + ... + 309497.

It is an arithmetic number, because the mean of its divisors is an integer number (19485018).

Almost surely, 2131137052 is an apocalyptic number.

It is an amenable number.

131137052 is a deficient number, since it is larger than the sum of its proper divisors (102683164).

131137052 is a wasteful number, since it uses less digits than its factorization.

131137052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618628 (or 618626 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 131137052 is about 11451.5087215615. The cubic root of 131137052 is about 508.0523588747.

Adding to 131137052 its reverse (250731131), we get a palindrome (381868183).

The spelling of 131137052 in words is "one hundred thirty-one million, one hundred thirty-seven thousand, fifty-two".

Divisors: 1 2 4 53 106 212 618571 1237142 2474284 32784263 65568526 131137052