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12118688300 = 2252196378257
BaseRepresentation
bin10110100100101010…
…01000001000101100
31011021120110011002102
423102111020020230
5144304341011200
65322305314232
7606212102525
oct132225101054
934246404072
1012118688300
115159757984
122422635978
1311b191c6a4
1482d6b584c
154addb76d5
hex2d254822c

12118688300 has 36 divisors (see below), whose sum is σ = 27681639720. Its totient is φ = 4592344320.

The previous prime is 12118688273. The next prime is 12118688327. The reversal of 12118688300 is 388681121.

It is an interprime number because it is at equal distance from previous prime (12118688273) and next prime (12118688327).

It is a super-2 number, since 2×121186883002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3187229 + ... + 3191028.

Almost surely, 212118688300 is an apocalyptic number.

12118688300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12118688300 is an abundant number, since it is smaller than the sum of its proper divisors (15562951420).

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

12118688300 is a wasteful number, since it uses less digits than its factorization.

12118688300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378290 (or 6378283 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The spelling of 12118688300 in words is "twelve billion, one hundred eighteen million, six hundred eighty-eight thousand, three hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 380 475 950 1900 6378257 12756514 25513028 31891285 63782570 121186883 127565140 159456425 242373766 318912850 484747532 605934415 637825700 1211868830 2423737660 3029672075 6059344150 12118688300