Base | Representation |
---|---|
bin | 1011010010110000… |
… | …0010001011010011 |
3 | 21211021012012211111 |
4 | 2310230002023103 |
5 | 22202022122011 |
6 | 1220450154151 |
7 | 135056555464 |
oct | 26454021323 |
9 | 7737165744 |
10 | 3031442131 |
11 | 1316196383 |
12 | 707282957 |
13 | 394072a53 |
14 | 20a86cd6b |
15 | 12b205121 |
hex | b4b022d3 |
3031442131 has 4 divisors (see below), whose sum is σ = 3060873712. Its totient is φ = 3002010552.
The previous prime is 3031442087. The next prime is 3031442171. The reversal of 3031442131 is 1312441303.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312441303 = 7507 ⋅174829.
It is a cyclic number.
It is not a de Polignac number, because 3031442131 - 27 = 3031442003 is a prime.
It is a super-2 number, since 2×30314421312 = 18379282787203642322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3031442171) 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, 14715636 + ... + 14715841.
It is an arithmetic number, because the mean of its divisors is an integer number (765218428).
Almost surely, 23031442131 is an apocalyptic number.
3031442131 is a deficient number, since it is larger than the sum of its proper divisors (29431581).
3031442131 is a wasteful number, since it uses less digits than its factorization.
3031442131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29431580.
The product of its (nonzero) digits is 864, while the sum is 22.
The square root of 3031442131 is about 55058.5336800754. The cubic root of 3031442131 is about 1447.2706693798.
Adding to 3031442131 its reverse (1312441303), we get a palindrome (4343883434).
The spelling of 3031442131 in words is "three billion, thirty-one million, four hundred forty-two thousand, one hundred thirty-one".
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