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12320010100 = 2252170972089
BaseRepresentation
bin10110111100101010…
…00110111101110100
31011210121021100200101
423132111012331310
5200212410310400
65354300323444
7614205233536
oct133625067564
934717240611
1012320010100
115252362a32
122479b43584
13121454a508
1484c31d856
154c18d356a
hex2de546f74

12320010100 has 36 divisors (see below), whose sum is σ = 26750436300. Its totient is φ = 4925052160.

The previous prime is 12320010083. The next prime is 12320010151. The reversal of 12320010100 is 101002321.

It can be written as a sum of positive squares in 6 ways, for example, as 352087696 + 11967922404 = 18764^2 + 109398^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 134856 + ... + 206944.

It is an arithmetic number, because the mean of its divisors is an integer number (743067675).

Almost surely, 212320010100 is an apocalyptic number.

12320010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320010100 is an abundant number, since it is smaller than the sum of its proper divisors (14430426200).

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

12320010100 is a wasteful number, since it uses less digits than its factorization.

12320010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73812 (or 73805 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12320010100 its reverse (101002321), we get a palindrome (12421012421).

The spelling of 12320010100 in words is "twelve billion, three hundred twenty million, ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1709 3418 6836 8545 17090 34180 42725 72089 85450 144178 170900 288356 360445 720890 1441780 1802225 3604450 7208900 123200101 246400202 492800404 616000505 1232001010 2464002020 3080002525 6160005050 12320010100