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31200314112 = 2832111231073
BaseRepresentation
bin11101000011101011…
…110000001100000000
32222112101220011210100
4131003223300030000
51002344240022422
622155551002400
72153113202622
oct350353601400
988471804710
1031200314112
1112260844870
126068b09400
132c32c69536
14171da1ac12
15c291c77ac
hex743af0300

31200314112 has 108 divisors (see below), whose sum is σ = 98136294984. Its totient is φ = 9454632960.

The previous prime is 31200314059. The next prime is 31200314141. The reversal of 31200314112 is 21141300213.

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

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, 590193 + ... + 640880.

It is an arithmetic number, because the mean of its divisors is an integer number (908669398).

Almost surely, 231200314112 is an apocalyptic number.

31200314112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31200314112 is an abundant number, since it is smaller than the sum of its proper divisors (66935980872).

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

31200314112 is a wasteful number, since it uses less digits than its factorization.

31200314112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231106 (or 1231089 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31200314112 its reverse (21141300213), we get a palindrome (52341614325).

The spelling of 31200314112 in words is "thirty-one billion, two hundred million, three hundred fourteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 256 264 288 352 384 396 528 576 704 768 792 1056 1152 1408 1584 2112 2304 2816 3168 4224 6336 8448 12672 25344 1231073 2462146 3693219 4924292 7386438 9848584 11079657 13541803 14772876 19697168 22159314 27083606 29545752 39394336 40625409 44318628 54167212 59091504 78788672 81250818 88637256 108334424 118183008 121876227 157577344 162501636 177274512 216668848 236366016 243752454 315154688 325003272 354549024 433337696 472732032 487504908 650006544 709098048 866675392 945464064 975009816 1300013088 1418196096 1733350784 1950019632 2600026176 2836392192 3466701568 3900039264 5200052352 7800078528 10400104704 15600157056 31200314112