Base | Representation |
---|---|
bin | 10010110100010111… |
… | …11011101010111111 |
3 | 222002002121012001210 |
4 | 21122023323222333 |
5 | 131142332341111 |
6 | 4350302335503 |
7 | 505235120400 |
oct | 113213735277 |
9 | 28062535053 |
10 | 10103012031 |
11 | 4314983522 |
12 | 1b5b58a593 |
13 | c50146c38 |
14 | 6bbad99a7 |
15 | 3e1e5a0a6 |
hex | 25a2fbabf |
10103012031 has 24 divisors (see below), whose sum is σ = 15676254000. Its totient is φ = 5770837632.
The previous prime is 10103012027. The next prime is 10103012053. The reversal of 10103012031 is 13021030101.
It is not a de Polignac number, because 10103012031 - 22 = 10103012027 is a prime.
It is a super-2 number, since 2×101030120312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 10103011998 and 10103012016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10103012531) 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, 395845 + ... + 420593.
It is an arithmetic number, because the mean of its divisors is an integer number (653177250).
Almost surely, 210103012031 is an apocalyptic number.
10103012031 is a deficient number, since it is larger than the sum of its proper divisors (5573241969).
10103012031 is a wasteful number, since it uses less digits than its factorization.
10103012031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27543 (or 27536 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 12.
Adding to 10103012031 its reverse (13021030101), we get a palindrome (23124042132).
The spelling of 10103012031 in words is "ten billion, one hundred three million, twelve thousand, thirty-one".
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