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12313100 = 2252177243
BaseRepresentation
bin101110111110…
…001000001100
3212011120101202
4232332020030
511123004400
61115525032
7206442152
oct56761014
925146352
1012313100
116a50018
124159778
132721677
1418c73d2
1511334d5
hexbbe20c

12313100 has 36 divisors (see below), whose sum is σ = 28295064. Its totient is φ = 4634880.

The previous prime is 12313099. The next prime is 12313109. The reversal of 12313100 is 131321.

12313100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123131002 = 303224863220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12313109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1922 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (785974).

Almost surely, 212313100 is an apocalyptic number.

12313100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313100 is an abundant number, since it is smaller than the sum of its proper divisors (15981964).

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

12313100 is a wasteful number, since it uses less digits than its factorization.

12313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274 (or 7267 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12313100 is about 3509.0027073230. The cubic root of 12313100 is about 230.9169444607.

Adding to 12313100 its reverse (131321), we get a palindrome (12444421).

The spelling of 12313100 in words is "twelve million, three hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 170 340 425 850 1700 7243 14486 28972 36215 72430 123131 144860 181075 246262 362150 492524 615655 724300 1231310 2462620 3078275 6156550 12313100