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123413013 = 32172633067
BaseRepresentation
bin1110101101100…
…10001000010101
322121020000211100
413112302020111
5223043204023
620125100313
73025664463
oct726621025
9277200740
10123413013
1163733029
12353b7699
131c750569
1412567833
15ac7bc43
hex75b2215

123413013 has 24 divisors (see below), whose sum is σ = 189528768. Its totient is φ = 77116032.

The previous prime is 123412987. The next prime is 123413021. The reversal of 123413013 is 310314321.

It is not a de Polignac number, because 123413013 - 217 = 123281941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123413033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38706 + ... + 41772.

It is an arithmetic number, because the mean of its divisors is an integer number (7897032).

Almost surely, 2123413013 is an apocalyptic number.

It is an amenable number.

123413013 is a deficient number, since it is larger than the sum of its proper divisors (66115755).

123413013 is a wasteful number, since it uses less digits than its factorization.

123413013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 123413013 is about 11109.1409658893. The cubic root of 123413013 is about 497.8749988680.

Adding to 123413013 its reverse (310314321), we get a palindrome (433727334).

The spelling of 123413013 in words is "one hundred twenty-three million, four hundred thirteen thousand, thirteen".

Divisors: 1 3 9 17 51 153 263 789 2367 3067 4471 9201 13413 27603 40239 52139 156417 469251 806621 2419863 7259589 13712557 41137671 123413013