Base | Representation |
---|---|
bin | 10010110100010111… |
… | …11011111010100111 |
3 | 222002002121020102211 |
4 | 21122023323322213 |
5 | 131142332404111 |
6 | 4350302344251 |
7 | 505235123326 |
oct | 113213737247 |
9 | 28062536384 |
10 | 10103013031 |
11 | 4314984251 |
12 | 1b5b58b087 |
13 | c50147527 |
14 | 6bbada0bd |
15 | 3e1e5a521 |
hex | 25a2fbea7 |
10103013031 has 4 divisors (see below), whose sum is σ = 10274250600. Its totient is φ = 9931775464.
The previous prime is 10103013007. The next prime is 10103013071. The reversal of 10103013031 is 13031030101.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13031030101 = 331 ⋅39368671.
It is a cyclic number.
It is not a de Polignac number, because 10103013031 - 27 = 10103012903 is a prime.
It is a super-2 number, since 2×101030130312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10103013001) 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, 85618696 + ... + 85618813.
It is an arithmetic number, because the mean of its divisors is an integer number (2568562650).
Almost surely, 210103013031 is an apocalyptic number.
10103013031 is a deficient number, since it is larger than the sum of its proper divisors (171237569).
10103013031 is an equidigital number, since it uses as much as digits as its factorization.
10103013031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 171237568.
The product of its (nonzero) digits is 27, while the sum is 13.
Adding to 10103013031 its reverse (13031030101), we get a palindrome (23134043132).
The spelling of 10103013031 in words is "ten billion, one hundred three million, thirteen thousand, thirty-one".
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