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12346604020 = 225646995429
BaseRepresentation
bin10110111111110101…
…00011100111110100
31011212110022110200101
423133322203213310
5200241212312040
65401050323444
7614650255042
oct133772434764
934773273611
1012346604020
115266377383
122486a29584
131219bcc06a
14851a83392
154c3dd809a
hex2dfea39f4

12346604020 has 24 divisors (see below), whose sum is σ = 25932148200. Its totient is φ = 4937826432.

The previous prime is 12346603999. The next prime is 12346604047. The reversal of 12346604020 is 2040664321.

It can be written as a sum of positive squares in 4 ways, for example, as 610781796 + 11735822224 = 24714^2 + 108332^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12346604020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81666 + ... + 177094.

It is an arithmetic number, because the mean of its divisors is an integer number (1080506175).

Almost surely, 212346604020 is an apocalyptic number.

12346604020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12346604020 is an abundant number, since it is smaller than the sum of its proper divisors (13585544180).

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

12346604020 is a wasteful number, since it uses less digits than its factorization.

12346604020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101907 (or 101905 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 12346604020 in words is "twelve billion, three hundred forty-six million, six hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 6469 12938 25876 32345 64690 95429 129380 190858 381716 477145 954290 1908580 617330201 1234660402 2469320804 3086651005 6173302010 12346604020