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12493828923 = 3294312312713
BaseRepresentation
bin10111010001011000…
…01011001100111011
31012020201100021021120
423220230023030323
5201041410011143
65423430040323
7621415536132
oct135054131473
935221307246
1012493828923
115331493654
1225081a90a3
131241568aa4
14867448919
154d1cba383
hex2e8b0b33b

12493828923 has 32 divisors (see below), whose sum is σ = 17654461440. Its totient is φ = 7845707520.

The previous prime is 12493828903. The next prime is 12493828937. The reversal of 12493828923 is 32982839421.

It is not a de Polignac number, because 12493828923 - 28 = 12493828667 is a prime.

It is a super-2 number, since 2×124938289232 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12493828903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4603815 + ... + 4606527.

It is an arithmetic number, because the mean of its divisors is an integer number (551701920).

Almost surely, 212493828923 is an apocalyptic number.

12493828923 is a deficient number, since it is larger than the sum of its proper divisors (5160632517).

12493828923 is a wasteful number, since it uses less digits than its factorization.

12493828923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019.

The product of its digits is 1492992, while the sum is 51.

The spelling of 12493828923 in words is "twelve billion, four hundred ninety-three million, eight hundred twenty-eight thousand, nine hundred twenty-three".

Divisors: 1 3 29 43 87 129 1231 1247 2713 3693 3741 8139 35699 52933 78677 107097 116659 158799 236031 349977 1535057 3339703 3383111 4605171 10019109 10149333 96851387 143607229 290554161 430821687 4164609641 12493828923