Base | Representation |
---|---|
bin | 1011101010011111… |
… | …1010100000011000 |
3 | 22002012120120102220 |
4 | 2322213322200120 |
5 | 22403020303212 |
6 | 1234404424040 |
7 | 140406164013 |
oct | 27247724030 |
9 | 8065516386 |
10 | 3131025432 |
11 | 1367422827 |
12 | 7346a8020 |
13 | 3ab89b992 |
14 | 219b9237a |
15 | 134d2638c |
hex | ba9fa818 |
3131025432 has 16 divisors (see below), whose sum is σ = 7827563640. Its totient is φ = 1043675136.
The previous prime is 3131025431. The next prime is 3131025463. The reversal of 3131025432 is 2345201313.
3131025432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×31310254323 (a number of 29 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 130459393 = 3131025432 / (3 + 1 + 3 + 1 + 0 + 2 + 5 + 4 + 3 + 2).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3131025431) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65229673 + ... + 65229720.
Almost surely, 23131025432 is an apocalyptic number.
It is an amenable number.
3131025432 is an abundant number, since it is smaller than the sum of its proper divisors (4696538208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3131025432 is a wasteful number, since it uses less digits than its factorization.
3131025432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130459402 (or 130459398 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 24.
The square root of 3131025432 is about 55955.5665863549. The cubic root of 3131025432 is about 1462.9479175623.
Adding to 3131025432 its reverse (2345201313), we get a palindrome (5476226745).
The spelling of 3131025432 in words is "three billion, one hundred thirty-one million, twenty-five thousand, four hundred thirty-two".
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