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12842821120 = 2955016727
BaseRepresentation
bin10111111010111110…
…11110011000000000
31020011001000220120111
423331133132120000
5202300230233440
65522214121104
7633154115113
oct137537363000
936131026514
1012842821120
1154a048a658
1225a5050194
13129895b34c
1489b93257a
155027554ea
hex2fd7de600

12842821120 has 40 divisors (see below), whose sum is σ = 30792676464. Its totient is φ = 5137127424.

The previous prime is 12842821097. The next prime is 12842821133. The reversal of 12842821120 is 2112824821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2505804 + ... + 2510923.

Almost surely, 212842821120 is an apocalyptic number.

12842821120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12842821120 is an abundant number, since it is smaller than the sum of its proper divisors (17949855344).

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

12842821120 is an frugal number, since it uses more digits than its factorization.

12842821120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016750 (or 5016734 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The spelling of 12842821120 in words is "twelve billion, eight hundred forty-two million, eight hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 5016727 10033454 20066908 25083635 40133816 50167270 80267632 100334540 160535264 200669080 321070528 401338160 642141056 802676320 1284282112 1605352640 2568564224 3210705280 6421410560 12842821120