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124442131 = 1188112841
BaseRepresentation
bin1110110101011…
…01011000010011
322200011022111211
413122231120103
5223324122011
620203120551
73040512022
oct732553023
9280138454
10124442131
1164276240
1235813157
131ca20ac8
14127548b9
15add1b21
hex76ad613

124442131 has 8 divisors (see below), whose sum is σ = 135919728. Its totient is φ = 112992000.

The previous prime is 124442119. The next prime is 124442141. The reversal of 124442131 is 131244421.

It is a happy number.

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

It is not a de Polignac number, because 124442131 - 25 = 124442099 is a prime.

It is a super-2 number, since 2×1244421312 = 30971687935642322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124442141) 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, 3271 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (16989966).

Almost surely, 2124442131 is an apocalyptic number.

124442131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

124442131 is a deficient number, since it is larger than the sum of its proper divisors (11477597).

124442131 is a wasteful number, since it uses less digits than its factorization.

124442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13733.

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

The square root of 124442131 is about 11155.3633289104. The cubic root of 124442131 is about 499.2550653626.

Adding to 124442131 its reverse (131244421), we get a palindrome (255686552).

The spelling of 124442131 in words is "one hundred twenty-four million, four hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 11 881 9691 12841 141251 11312921 124442131