Base | Representation |
---|---|
bin | 1011101010100010… |
… | …0111101001000000 |
3 | 22002012220222001000 |
4 | 2322220213221000 |
5 | 22403042212204 |
6 | 1234412412000 |
7 | 140410564005 |
oct | 27250475100 |
9 | 8065828030 |
10 | 3131210304 |
11 | 1367539712 |
12 | 734777000 |
13 | 3ab934b81 |
14 | 219bdd8ac |
15 | 134d61039 |
hex | baa27a40 |
3131210304 has 112 divisors (see below), whose sum is σ = 9502282240. Its totient is φ = 1010050560.
The previous prime is 3131210281. The next prime is 3131210309. The reversal of 3131210304 is 4030121313.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (3131210309) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24342 + ... + 82794.
Almost surely, 23131210304 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3131210304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4751141120).
3131210304 is an abundant number, since it is smaller than the sum of its proper divisors (6371071936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3131210304 is a wasteful number, since it uses less digits than its factorization.
3131210304 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58505 (or 58489 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 3131210304 is about 55957.2185155767. The cubic root of 3131210304 is about 1462.9767103428.
Adding to 3131210304 its reverse (4030121313), we get a palindrome (7161331617).
It can be divided in two parts, 31312 and 10304, that added together give a triangular number (41616 = T288).
The spelling of 3131210304 in words is "three billion, one hundred thirty-one million, two hundred ten thousand, three hundred four".
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