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123230005 = 5471274129
BaseRepresentation
bin1110101100001…
…01011100110101
322120212201210021
413112011130311
5223021330010
620121125141
73024303103
oct726053465
9276781707
10123230005
1163618588
12353297b1
131c6b8182
141251ac73
15ac428da
hex7585735

123230005 has 16 divisors (see below), whose sum is σ = 152248320. Its totient is φ = 95703552.

The previous prime is 123229979. The next prime is 123230011. The reversal of 123230005 is 500032321.

It is a cyclic number.

It is not a de Polignac number, because 123230005 - 25 = 123229973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27781 + ... + 31909.

It is an arithmetic number, because the mean of its divisors is an integer number (9515520).

Almost surely, 2123230005 is an apocalyptic number.

It is an amenable number.

123230005 is a deficient number, since it is larger than the sum of its proper divisors (29018315).

123230005 is a wasteful number, since it uses less digits than its factorization.

123230005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 123230005 is about 11100.9010895512. The cubic root of 123230005 is about 497.6287790661.

Adding to 123230005 its reverse (500032321), we get a palindrome (623262326).

The spelling of 123230005 in words is "one hundred twenty-three million, two hundred thirty thousand, five".

Divisors: 1 5 47 127 235 635 4129 5969 20645 29845 194063 524383 970315 2621915 24646001 123230005