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124400023 = 1147713389
BaseRepresentation
bin1110110101000…
…11000110010111
322200002011202021
413122203012113
5223321300043
620202154011
73040245166
oct732430627
9280064667
10124400023
1164247640
12357b2907
131ca078a7
14127433dd
15adc43ed
hex76a3197

124400023 has 16 divisors (see below), whose sum is σ = 140590080. Its totient is φ = 109093600.

The previous prime is 124400021. The next prime is 124400041. The reversal of 124400023 is 320004421.

It is not a de Polignac number, because 124400023 - 21 = 124400021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124400021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35013 + ... + 38401.

It is an arithmetic number, because the mean of its divisors is an integer number (8786880).

Almost surely, 2124400023 is an apocalyptic number.

124400023 is a deficient number, since it is larger than the sum of its proper divisors (16190057).

124400023 is a wasteful number, since it uses less digits than its factorization.

124400023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 124400023 is about 11153.4758259477. The cubic root of 124400023 is about 499.1987473409.

Adding to 124400023 its reverse (320004421), we get a palindrome (444404444).

The spelling of 124400023 in words is "one hundred twenty-four million, four hundred thousand, twenty-three".

Divisors: 1 11 47 71 517 781 3337 3389 36707 37279 159283 240619 1752113 2646809 11309093 124400023