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124431142 = 2115655961
BaseRepresentation
bin1110110101010…
…10101100100110
322200010202102211
413122222230212
5223323244032
620202554034
73040435003
oct732525446
9280122384
10124431142
1164268a60
123580891a
131ca18ac4
14127508aa
15adcd747
hex76aab26

124431142 has 8 divisors (see below), whose sum is σ = 203614632. Its totient is φ = 56559600.

The previous prime is 124431119. The next prime is 124431161. The reversal of 124431142 is 241134421.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 5655961 = 124431142 / (1 + 2 + 4 + 4 + 3 + 1 + 1 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2827959 + ... + 2828002.

It is an arithmetic number, because the mean of its divisors is an integer number (25451829).

Almost surely, 2124431142 is an apocalyptic number.

124431142 is a deficient number, since it is larger than the sum of its proper divisors (79183490).

124431142 is a wasteful number, since it uses less digits than its factorization.

124431142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655974.

The product of its digits is 768, while the sum is 22.

The square root of 124431142 is about 11154.8707746885. The cubic root of 124431142 is about 499.2403691731.

Adding to 124431142 its reverse (241134421), we get a palindrome (365565563).

The spelling of 124431142 in words is "one hundred twenty-four million, four hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 11 22 5655961 11311922 62215571 124431142