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12303102100 = 2252294242449
BaseRepresentation
bin10110111010101001…
…00111000010010100
31011202102110100021011
423131110213002110
5200144043231400
65352454102004
7613611433222
oct133524470224
934672410234
1012303102100
115243864783
12247434a904
131210baa593
14849d9bb12
154c01938ba
hex2dd527094

12303102100 has 36 divisors (see below), whose sum is σ = 27618349500. Its totient is φ = 4751541760.

The previous prime is 12303102089. The next prime is 12303102121. The reversal of 12303102100 is 120130321.

It can be written as a sum of positive squares in 6 ways, for example, as 743044 + 12302359056 = 862^2 + 110916^2 .

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, 2118325 + ... + 2124124.

It is an arithmetic number, because the mean of its divisors is an integer number (767176375).

Almost surely, 212303102100 is an apocalyptic number.

12303102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303102100 is an abundant number, since it is smaller than the sum of its proper divisors (15315247400).

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

12303102100 is a wasteful number, since it uses less digits than its factorization.

12303102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242492 (or 4242485 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12303102100 its reverse (120130321), we get a palindrome (12423232421).

The spelling of 12303102100 in words is "twelve billion, three hundred three million, one hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 2900 4242449 8484898 16969796 21212245 42424490 84848980 106061225 123031021 212122450 246062042 424244900 492124084 615155105 1230310210 2460620420 3075775525 6151551050 12303102100