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124120413 = 3213791157
BaseRepresentation
bin1110110010111…
…10110101011101
322122112222012100
413121132311131
5223233323123
620152155313
73035002044
oct731366535
9278488170
10124120413
116407655a
1235698b39
131c93a541
14126ad55b
15ad6b643
hex765ed5d

124120413 has 6 divisors (see below), whose sum is σ = 179285054. Its totient is φ = 82746936.

The previous prime is 124120391. The next prime is 124120429. The reversal of 124120413 is 314021421.

It can be written as a sum of positive squares in only one way, i.e., 72539289 + 51581124 = 8517^2 + 7182^2 .

It is not a de Polignac number, because 124120413 - 216 = 124054877 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 (124120433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6895570 + ... + 6895587.

Almost surely, 2124120413 is an apocalyptic number.

It is an amenable number.

124120413 is a deficient number, since it is larger than the sum of its proper divisors (55164641).

124120413 is a wasteful number, since it uses less digits than its factorization.

124120413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13791163 (or 13791160 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 124120413 is about 11140.9341170299. The cubic root of 124120413 is about 498.8244556905.

Adding to 124120413 its reverse (314021421), we get a palindrome (438141834).

The spelling of 124120413 in words is "one hundred twenty-four million, one hundred twenty thousand, four hundred thirteen".

Divisors: 1 3 9 13791157 41373471 124120413