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12000568880 = 245295172659
BaseRepresentation
bin10110010110100101…
…00010011000110000
31010222100012001201002
423023102202120300
5144034121201010
65302445501132
7603246103166
oct131322423060
933870161632
1012000568880
1150a9010023
1223aab717a8
131193303741
1481bb29236
154a38341a5
hex2cb4a2630

12000568880 has 40 divisors (see below), whose sum is σ = 28863442800. Its totient is φ = 4634701568.

The previous prime is 12000568873. The next prime is 12000568883. The reversal of 12000568880 is 8886500021.

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

It is not an unprimeable number, because it can be changed into a prime (12000568883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2584010 + ... + 2588649.

It is an arithmetic number, because the mean of its divisors is an integer number (721586070).

Almost surely, 212000568880 is an apocalyptic number.

12000568880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000568880 is an abundant number, since it is smaller than the sum of its proper divisors (16862873920).

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

12000568880 is a wasteful number, since it uses less digits than its factorization.

12000568880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5172701 (or 5172695 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 12000568880 in words is "twelve billion, five hundred sixty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 5172659 10345318 20690636 25863295 41381272 51726590 82762544 103453180 150007111 206906360 300014222 413812720 600028444 750035555 1200056888 1500071110 2400113776 3000142220 6000284440 12000568880