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131124427 = 767279583
BaseRepresentation
bin1111101000011…
…00110011001011
3100010201210220021
413310030303023
5232031440202
621002241311
73151352650
oct764146313
9303653807
10131124427
116801a7a5
1237ab6237
1321220525
14135b3c27
15b7a1a37
hex7d0cccb

131124427 has 8 divisors (see below), whose sum is σ = 152093696. Its totient is φ = 110714472.

The previous prime is 131124421. The next prime is 131124463. The reversal of 131124427 is 724421131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131124427 - 23 = 131124419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131124421) 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, 139323 + ... + 140260.

It is an arithmetic number, because the mean of its divisors is an integer number (19011712).

Almost surely, 2131124427 is an apocalyptic number.

131124427 is a deficient number, since it is larger than the sum of its proper divisors (20969269).

131124427 is an equidigital number, since it uses as much as digits as its factorization.

131124427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279657.

The product of its digits is 1344, while the sum is 25.

The square root of 131124427 is about 11450.9574708843. The cubic root of 131124427 is about 508.0360543882.

Adding to 131124427 its reverse (724421131), we get a palindrome (855545558).

The spelling of 131124427 in words is "one hundred thirty-one million, one hundred twenty-four thousand, four hundred twenty-seven".

Divisors: 1 7 67 469 279583 1957081 18732061 131124427