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124421423 = 744340123
BaseRepresentation
bin1110110101010…
…00010100101111
322200010021002212
413122220110233
5223322441143
620202441035
73040364450
oct732502457
9280107085
10124421423
1164261725
123580317b
131ca14559
141274b127
15adca918
hex76a852f

124421423 has 8 divisors (see below), whose sum is σ = 142520448. Its totient is φ = 106403544.

The previous prime is 124421413. The next prime is 124421431. The reversal of 124421423 is 324124421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124421423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124421413) 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, 16961 + ... + 23162.

It is an arithmetic number, because the mean of its divisors is an integer number (17815056).

Almost surely, 2124421423 is an apocalyptic number.

124421423 is a deficient number, since it is larger than the sum of its proper divisors (18099025).

124421423 is an equidigital number, since it uses as much as digits as its factorization.

124421423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40573.

The product of its digits is 1536, while the sum is 23.

The square root of 124421423 is about 11154.4351268901. The cubic root of 124421423 is about 499.2273707029.

Adding to 124421423 its reverse (324124421), we get a palindrome (448545844).

The spelling of 124421423 in words is "one hundred twenty-four million, four hundred twenty-one thousand, four hundred twenty-three".

Divisors: 1 7 443 3101 40123 280861 17774489 124421423