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131412844 = 22312933617
BaseRepresentation
bin1111101010100…
…11001101101100
3100011021110112101
413311103031230
5232120202334
621012344444
73153663553
oct765231554
9304243471
10131412844
11681a7462
1238015124
13212c18a4
141364ad9a
15b80c214
hex7d5336c

131412844 has 24 divisors (see below), whose sum is σ = 238267008. Its totient is φ = 63352320.

The previous prime is 131412829. The next prime is 131412881. The reversal of 131412844 is 448214131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34524 + ... + 38140.

It is an arithmetic number, because the mean of its divisors is an integer number (9927792).

Almost surely, 2131412844 is an apocalyptic number.

It is an amenable number.

131412844 is a deficient number, since it is larger than the sum of its proper divisors (106854164).

131412844 is a wasteful number, since it uses less digits than its factorization.

131412844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3943 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 131412844 is about 11463.5441291077. The cubic root of 131412844 is about 508.4082681134.

Adding to 131412844 its reverse (448214131), we get a palindrome (579626975).

The spelling of 131412844 in words is "one hundred thirty-one million, four hundred twelve thousand, eight hundred forty-four".

Divisors: 1 2 4 31 62 124 293 586 1172 3617 7234 9083 14468 18166 36332 112127 224254 448508 1059781 2119562 4239124 32853211 65706422 131412844