Base | Representation |
---|---|
bin | 1011101010011111… |
… | …1001001101100010 |
3 | 22002012120022011112 |
4 | 2322213321031202 |
5 | 22403020121010 |
6 | 1234404343322 |
7 | 140406142400 |
oct | 27247711542 |
9 | 8065508145 |
10 | 3131020130 |
11 | 1367419847 |
12 | 7346a4b42 |
13 | 3ab899444 |
14 | 219b90470 |
15 | 134d24a05 |
hex | ba9f9362 |
3131020130 has 96 divisors (see below), whose sum is σ = 6868717056. Its totient is φ = 1022668416.
The previous prime is 3131020121. The next prime is 3131020141. The reversal of 3131020130 is 310201313.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4135712 + ... + 4136468.
It is an arithmetic number, because the mean of its divisors is an integer number (71549136).
Almost surely, 23131020130 is an apocalyptic number.
3131020130 is an abundant number, since it is smaller than the sum of its proper divisors (3737696926).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3131020130 is a wasteful number, since it uses less digits than its factorization.
3131020130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1168 (or 1161 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 3131020130 is about 55955.5192094578. The cubic root of 3131020130 is about 1462.9470917887.
Adding to 3131020130 its reverse (310201313), we get a palindrome (3441221443).
The spelling of 3131020130 in words is "three billion, one hundred thirty-one million, twenty thousand, one hundred thirty".
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