Base | Representation |
---|---|
bin | 111100101001011101… |
… | …1101101011001010111 |
3 | 110110011200021222120210 |
4 | 1321102323231121113 |
5 | 4113213020344111 |
6 | 135455343500503 |
7 | 12260323105554 |
oct | 1712273553127 |
9 | 413150258523 |
10 | 130240403031 |
11 | 50264348522 |
12 | 212a92b7733 |
13 | c387936c4b |
14 | 64373a7a2b |
15 | 35c3eee0a6 |
hex | 1e52eed657 |
130240403031 has 4 divisors (see below), whose sum is σ = 173653870712. Its totient is φ = 86826935352.
The previous prime is 130240403021. The next prime is 130240403039. The reversal of 130240403031 is 130304042031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130304042031 = 3 ⋅43434680677.
It is not a de Polignac number, because 130240403031 - 210 = 130240402007 is a prime.
It is a super-2 number, since 2×1302404030312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130240402989 and 130240403007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130240403039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21706733836 + ... + 21706733841.
It is an arithmetic number, because the mean of its divisors is an integer number (43413467678).
Almost surely, 2130240403031 is an apocalyptic number.
130240403031 is a deficient number, since it is larger than the sum of its proper divisors (43413467681).
130240403031 is an equidigital number, since it uses as much as digits as its factorization.
130240403031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43413467680.
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 130240403031 its reverse (130304042031), we get a palindrome (260544445062).
The spelling of 130240403031 in words is "one hundred thirty billion, two hundred forty million, four hundred three thousand, thirty-one".
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