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12312020600 = 2352115596373
BaseRepresentation
bin10110111011101101…
…01000011001111000
31011210001020110010222
423131312220121320
5200203334124400
65353413155212
7614050306535
oct133566503170
934701213128
1012312020600
1152488a6340
12247732bb08
1312129b0ab9
1484b23dd8c
154c0d56185
hex2ddda8678

12312020600 has 48 divisors (see below), whose sum is σ = 31227766920. Its totient is φ = 4477097600.

The previous prime is 12312020599. The next prime is 12312020603. The reversal of 12312020600 is 602021321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312020603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2795987 + ... + 2800386.

Almost surely, 212312020600 is an apocalyptic number.

12312020600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312020600 is an abundant number, since it is smaller than the sum of its proper divisors (18915746320).

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

12312020600 is a wasteful number, since it uses less digits than its factorization.

12312020600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596400 (or 5596391 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12312020600 its reverse (602021321), we get a palindrome (12914041921).

The spelling of 12312020600 in words is "twelve billion, three hundred twelve million, twenty thousand, six hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 5596373 11192746 22385492 27981865 44770984 55963730 61560103 111927460 123120206 139909325 223854920 246240412 279818650 307800515 492480824 559637300 615601030 1119274600 1231202060 1539002575 2462404120 3078005150 6156010300 12312020600