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123230604 = 223743109313
BaseRepresentation
bin1110101100001…
…01100110001100
322120212202121110
413112011212030
5223021334404
620121132020
73024304620
oct726054614
9276782543
10123230604
1163618a82
123532a010
131c6b8523
141251b180
15ac42b89
hex758598c

123230604 has 96 divisors (see below), whose sum is σ = 340426240. Its totient is φ = 33965568.

The previous prime is 123230587. The next prime is 123230617. The reversal of 123230604 is 406032321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 393552 + ... + 393864.

Almost surely, 2123230604 is an apocalyptic number.

123230604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123230604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170213120).

123230604 is an abundant number, since it is smaller than the sum of its proper divisors (217195636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123230604 is a wasteful number, since it uses less digits than its factorization.

123230604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123230604 is about 11100.9280693102. The cubic root of 123230604 is about 497.6295853609.

Adding to 123230604 its reverse (406032321), we get a palindrome (529262925).

The spelling of 123230604 in words is "one hundred twenty-three million, two hundred thirty thousand, six hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 43 84 86 109 129 172 218 258 301 313 327 436 516 602 626 654 763 903 939 1204 1252 1308 1526 1806 1878 2191 2289 3052 3612 3756 4382 4578 4687 6573 8764 9156 9374 13146 13459 14061 18748 26292 26918 28122 32809 34117 40377 53836 56244 65618 68234 80754 94213 98427 102351 131236 136468 161508 188426 196854 204702 238819 282639 376852 393708 409404 477638 565278 716457 955276 1130556 1432914 1467031 2865828 2934062 4401093 5868124 8802186 10269217 17604372 20538434 30807651 41076868 61615302 123230604