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124011031 = 953130127
BaseRepresentation
bin1110110010001…
…00001000010111
322122100102011011
413121010020113
5223221323111
620145553051
73034035124
oct731041027
9278312134
10124011031
1164001361
1235645787
131c8cc811
141268174b
15ad49021
hex7644217

124011031 has 4 divisors (see below), whose sum is σ = 124142112. Its totient is φ = 123879952.

The previous prime is 124011007. The next prime is 124011049. The reversal of 124011031 is 130110421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130110421 = 718587203.

It is a cyclic number.

It is not a de Polignac number, because 124011031 - 225 = 90456599 is a prime.

It is a super-2 number, since 2×1240110312 = 30757471619365922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124011001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64111 + ... + 66016.

It is an arithmetic number, because the mean of its divisors is an integer number (31035528).

Almost surely, 2124011031 is an apocalyptic number.

124011031 is a deficient number, since it is larger than the sum of its proper divisors (131081).

124011031 is an equidigital number, since it uses as much as digits as its factorization.

124011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131080.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 124011031 is about 11136.0240211666. The cubic root of 124011031 is about 498.6778817548.

Adding to 124011031 its reverse (130110421), we get a palindrome (254121452).

The spelling of 124011031 in words is "one hundred twenty-four million, eleven thousand, thirty-one".

Divisors: 1 953 130127 124011031