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123230332020 = 223517731654987
BaseRepresentation
bin111001011000100011…
…0011010010001110100
3102210002010121110222010
41302301012122101310
54004333431111040
6132340005404220
711621522353005
oct1626106322164
9383063543863
10123230332020
1148297345404
121ba71709670
13b80b516033
145d703891ac
153313895e80
hex1cb119a474

123230332020 has 96 divisors (see below), whose sum is σ = 370346594688. Its totient is φ = 30504701952.

The previous prime is 123230332019. The next prime is 123230332033. The reversal of 123230332020 is 20233032321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 753034 + ... + 901953.

It is an arithmetic number, because the mean of its divisors is an integer number (3857777028).

Almost surely, 2123230332020 is an apocalyptic number.

123230332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123230332020 is an abundant number, since it is smaller than the sum of its proper divisors (247116262668).

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

123230332020 is a wasteful number, since it uses less digits than its factorization.

123230332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655089 (or 1655087 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 123230332020 its reverse (20233032321), we get a palindrome (143463364341).

The spelling of 123230332020 in words is "one hundred twenty-three billion, two hundred thirty million, three hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 73 85 102 146 170 204 219 255 292 340 365 438 510 730 876 1020 1095 1241 1460 2190 2482 3723 4380 4964 6205 7446 12410 14892 18615 24820 37230 74460 1654987 3309974 4964961 6619948 8274935 9929922 16549870 19859844 24824805 28134779 33099740 49649610 56269558 84404337 99299220 112539116 120814051 140673895 168808674 241628102 281347790 337617348 362442153 422021685 483256204 562695580 604070255 724884306 844043370 1208140510 1449768612 1688086740 1812210765 2053838867 2416281020 3624421530 4107677734 6161516601 7248843060 8215355468 10269194335 12323033202 20538388670 24646066404 30807583005 41076777340 61615166010 123230332020