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131424868 = 22293113643
BaseRepresentation
bin1111101010101…
…10001001100100
3100011022002000201
413311112021210
5232121043433
621012520244
73154043611
oct765261144
9304262021
10131424868
11682054a3
1238020084
13212c71c3
1413651508
15b810a7d
hex7d56264

131424868 has 24 divisors (see below), whose sum is σ = 238754880. Its totient is φ = 63225120.

The previous prime is 131424863. The next prime is 131424869. The reversal of 131424868 is 868424131.

It is not an unprimeable number, because it can be changed into a prime (131424863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34255 + ... + 37897.

It is an arithmetic number, because the mean of its divisors is an integer number (9948120).

Almost surely, 2131424868 is an apocalyptic number.

It is an amenable number.

131424868 is a deficient number, since it is larger than the sum of its proper divisors (107330012).

131424868 is a wasteful number, since it uses less digits than its factorization.

131424868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987 (or 3985 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 131424868 is about 11464.0685622514. The cubic root of 131424868 is about 508.4237737378.

Adding to 131424868 its reverse (868424131), we get a palindrome (999848999).

The spelling of 131424868 in words is "one hundred thirty-one million, four hundred twenty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 4 29 58 116 311 622 1244 3643 7286 9019 14572 18038 36076 105647 211294 422588 1132973 2265946 4531892 32856217 65712434 131424868