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12313202400 = 2532521710167
BaseRepresentation
bin10110111011110110…
…01000111011100000
31011210010110111021100
423131323020323200
5200204134434100
65353454354400
7614063331162
oct133573107340
934703414240
1012313202400
115249533234
1224777bba00
1312130059a5
1484b46a932
154c0edb400
hex2ddec8ee0

12313202400 has 108 divisors (see below), whose sum is σ = 43419455352. Its totient is φ = 3283518720.

The previous prime is 12313202393. The next prime is 12313202413. The reversal of 12313202400 is 420231321.

12313202400 is a `hidden beast` number, since 1 + 231 + 32 + 0 + 2 + 400 = 666.

It is a super-2 number, since 2×123132024002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 847884 + ... + 862283.

It is an arithmetic number, because the mean of its divisors is an integer number (402031994).

Almost surely, 212313202400 is an apocalyptic number.

12313202400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313202400 is an abundant number, since it is smaller than the sum of its proper divisors (31106252952).

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

12313202400 is a wasteful number, since it uses less digits than its factorization.

12313202400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710193 (or 1710177 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12313202400 its reverse (420231321), we get a palindrome (12733433721).

The spelling of 12313202400 in words is "twelve billion, three hundred thirteen million, two hundred two thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 144 150 160 180 200 225 240 288 300 360 400 450 480 600 720 800 900 1200 1440 1800 2400 3600 7200 1710167 3420334 5130501 6840668 8550835 10261002 13681336 15391503 17101670 20522004 25652505 27362672 30783006 34203340 41044008 42754175 51305010 54725344 61566012 68406680 76957515 82088016 85508350 102610020 123132024 128262525 136813360 153915030 164176032 171016700 205220040 246264048 256525050 273626720 307830060 342033400 384787575 410440080 492528096 513050100 615660120 684066800 769575150 820880160 1026100200 1231320240 1368133600 1539150300 2052200400 2462640480 3078300600 4104400800 6156601200 12313202400