Base | Representation |
---|---|
bin | 11101001001101000… |
… | …110101010110100010 |
3 | 2222210100212112002221 |
4 | 131021220311112202 |
5 | 1003100323242010 |
6 | 22213520101254 |
7 | 2155435261525 |
oct | 351150652642 |
9 | 88710775087 |
10 | 31300212130 |
11 | 12302176710 |
12 | 609646482a |
13 | 2c4a8757a5 |
14 | 172cdc2bbc |
15 | c32d5bdda |
hex | 749a355a2 |
31300212130 has 96 divisors (see below), whose sum is σ = 64009268928. Its totient is φ = 10923024000.
The previous prime is 31300212113. The next prime is 31300212137. The reversal of 31300212130 is 3121200313.
It is not an unprimeable number, because it can be changed into a prime (31300212137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16464180 + ... + 16466080.
It is an arithmetic number, because the mean of its divisors is an integer number (666763218).
Almost surely, 231300212130 is an apocalyptic number.
31300212130 is an abundant number, since it is smaller than the sum of its proper divisors (32709056798).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31300212130 is a wasteful number, since it uses less digits than its factorization.
31300212130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2080 (or 2021 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 31300212130 its reverse (3121200313), we get a palindrome (34421412443).
The spelling of 31300212130 in words is "thirty-one billion, three hundred million, two hundred twelve thousand, one hundred thirty".
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