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12113130536 = 2313139837931
BaseRepresentation
bin10110100011111111…
…11011010000101000
31011021011222210021022
423101333323100220
5144301430134121
65321550232012
7606113624243
oct132177732050
934234883238
1012113130536
115156601291
1224207b5608
1311b0724a80
1482ca6a25a
154ad66aaab
hex2d1ffb428

12113130536 has 32 divisors (see below), whose sum is σ = 24635200800. Its totient is φ = 5550448320.

The previous prime is 12113130493. The next prime is 12113130539. The reversal of 12113130536 is 63503131121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (12113130539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404510 + ... + 433421.

It is an arithmetic number, because the mean of its divisors is an integer number (769850025).

Almost surely, 212113130536 is an apocalyptic number.

It is an amenable number.

12113130536 is an abundant number, since it is smaller than the sum of its proper divisors (12522070264).

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

12113130536 is a wasteful number, since it uses less digits than its factorization.

12113130536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838089 (or 838085 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 12113130536 its reverse (63503131121), we get a palindrome (75616261657).

The spelling of 12113130536 in words is "twelve billion, one hundred thirteen million, one hundred thirty thousand, five hundred thirty-six".

Divisors: 1 2 4 8 13 26 52 104 139 278 556 1112 1807 3614 7228 14456 837931 1675862 3351724 6703448 10893103 21786206 43572412 87144824 116472409 232944818 465889636 931779272 1514141317 3028282634 6056565268 12113130536