Base | Representation |
---|---|
bin | 11101000011101011… |
… | …110000001100000000 |
3 | 2222112101220011210100 |
4 | 131003223300030000 |
5 | 1002344240022422 |
6 | 22155551002400 |
7 | 2153113202622 |
oct | 350353601400 |
9 | 88471804710 |
10 | 31200314112 |
11 | 12260844870 |
12 | 6068b09400 |
13 | 2c32c69536 |
14 | 171da1ac12 |
15 | c291c77ac |
hex | 743af0300 |
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".
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