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123230012 = 22142721589
BaseRepresentation
bin1110101100001…
…01011100111100
322120212201210112
413112011130330
5223021330022
620121125152
73024303113
oct726053474
9276781715
10123230012
1163618594
12353297b8
131c6b8189
141251ac7a
15ac428e2
hex758573c

123230012 has 12 divisors (see below), whose sum is σ = 215813640. Its totient is φ = 61568976.

The previous prime is 123230011. The next prime is 123230027. The reversal of 123230012 is 210032321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123230011) 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, 5087 + ... + 16502.

It is an arithmetic number, because the mean of its divisors is an integer number (17984470).

Almost surely, 2123230012 is an apocalyptic number.

It is an amenable number.

123230012 is a deficient number, since it is larger than the sum of its proper divisors (92583628).

123230012 is a wasteful number, since it uses less digits than its factorization.

123230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23020 (or 23018 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 123230012 is about 11100.9014048410. The cubic root of 123230012 is about 497.6287884886.

Adding to 123230012 its reverse (210032321), we get a palindrome (333262333).

The spelling of 123230012 in words is "one hundred twenty-three million, two hundred thirty thousand, twelve".

Divisors: 1 2 4 1427 2854 5708 21589 43178 86356 30807503 61615006 123230012