Base | Representation |
---|---|
bin | 10010101011110011… |
… | …10001010001111111 |
3 | 221220002100210221100 |
4 | 21111321301101333 |
5 | 131020433021030 |
6 | 4335214104143 |
7 | 503403204666 |
oct | 112571612177 |
9 | 27802323840 |
10 | 10031142015 |
11 | 4288355514 |
12 | 1b3b4ab053 |
13 | c3b2a21bb |
14 | 6b234bddd |
15 | 3da9b0360 |
hex | 255e7147f |
10031142015 has 24 divisors (see below), whose sum is σ = 17439868368. Its totient is φ = 5333771520.
The previous prime is 10031142013. The next prime is 10031142019. The reversal of 10031142015 is 51024113001.
It is not a de Polignac number, because 10031142015 - 21 = 10031142013 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10031142013) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321834 + ... + 351623.
It is an arithmetic number, because the mean of its divisors is an integer number (726661182).
Almost surely, 210031142015 is an apocalyptic number.
10031142015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
10031142015 is a deficient number, since it is larger than the sum of its proper divisors (7408726353).
10031142015 is a wasteful number, since it uses less digits than its factorization.
10031142015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 673799 (or 673796 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
Adding to 10031142015 its reverse (51024113001), we get a palindrome (61055255016).
The spelling of 10031142015 in words is "ten billion, thirty-one million, one hundred forty-two thousand, fifteen".
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