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12313202232 = 2333129035701
BaseRepresentation
bin10110111011110110…
…01000111000111000
31011210010110111001010
423131323020320320
5200204134432412
65353454353520
7614063330532
oct133573107070
934703414033
1012313202232
1152495330a1
1224777bb8a0
1312130058a6
1484b46a852
154c0edb33c
hex2ddec8e38

12313202232 has 64 divisors (see below), whose sum is σ = 31792527360. Its totient is φ = 3969936000.

The previous prime is 12313202197. The next prime is 12313202309. The reversal of 12313202232 is 23220231321.

It is a happy number.

It is a super-2 number, since 2×123132022322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12313202199 and 12313202208.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2156982 + ... + 2162682.

It is an arithmetic number, because the mean of its divisors is an integer number (496758240).

Almost surely, 212313202232 is an apocalyptic number.

12313202232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12313202232 is an abundant number, since it is smaller than the sum of its proper divisors (19479325128).

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

12313202232 is a wasteful number, since it uses less digits than its factorization.

12313202232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8644 (or 8640 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12313202232 its reverse (23220231321), we get a palindrome (35533433553).

The spelling of 12313202232 in words is "twelve billion, three hundred thirteen million, two hundred two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 2903 5701 5806 8709 11402 11612 17103 17418 22804 23224 34206 34836 45608 68412 69672 89993 136824 176731 179986 269979 353462 359972 530193 539958 706924 719944 1060386 1079916 1413848 2120772 2159832 4241544 16550003 33100006 49650009 66200012 99300018 132400024 198600036 397200072 513050093 1026100186 1539150279 2052200372 3078300558 4104400744 6156601116 12313202232