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12120323300 = 2252149381181
BaseRepresentation
bin10110100100110110…
…10111010011100100
31011021200112012212222
423102123113103210
5144310300321200
65322404331512
7606232022351
oct132233272344
934250465788
1012120323300
11515a674318
1224230a3b98
1311b2072947
1482d9bd628
154ae0dbd85
hex2d26d74e4

12120323300 has 36 divisors (see below), whose sum is σ = 26319042036. Its totient is φ = 4844822400.

The previous prime is 12120323297. The next prime is 12120323333. The reversal of 12120323300 is 332302121.

It can be written as a sum of positive squares in 6 ways, for example, as 223622116 + 11896701184 = 14954^2 + 109072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108710 + ... + 189890.

It is an arithmetic number, because the mean of its divisors is an integer number (731084501).

Almost surely, 212120323300 is an apocalyptic number.

12120323300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120323300 is an abundant number, since it is smaller than the sum of its proper divisors (14198718736).

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

12120323300 is a wasteful number, since it uses less digits than its factorization.

12120323300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82688 (or 82681 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12120323300 its reverse (332302121), we get a palindrome (12452625421).

The spelling of 12120323300 in words is "twelve billion, one hundred twenty million, three hundred twenty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1493 2986 5972 7465 14930 29860 37325 74650 81181 149300 162362 324724 405905 811810 1623620 2029525 4059050 8118100 121203233 242406466 484812932 606016165 1212032330 2424064660 3030080825 6060161650 12120323300