Base | Representation |
---|---|
bin | 10011001100000110… |
… | …01010111110101111 |
3 | 222120222002221220021 |
4 | 21212003022332233 |
5 | 132044310321111 |
6 | 4422132303011 |
7 | 513202624651 |
oct | 114603127657 |
9 | 28528087807 |
10 | 10302042031 |
11 | 4407263726 |
12 | 1bb6171a67 |
13 | c82451878 |
14 | 6da3086d1 |
15 | 404671d71 |
hex | 2660cafaf |
10302042031 has 4 divisors (see below), whose sum is σ = 10305255600. Its totient is φ = 10298828464.
The previous prime is 10302042017. The next prime is 10302042067. The reversal of 10302042031 is 13024020301.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 10302042031 - 27 = 10302041903 is a prime.
It is a super-2 number, since 2×103020420312 (a number of 21 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 = 10302041996 and 10302042014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10302042011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601971 + ... + 1608388.
It is an arithmetic number, because the mean of its divisors is an integer number (2576313900).
Almost surely, 210302042031 is an apocalyptic number.
10302042031 is a deficient number, since it is larger than the sum of its proper divisors (3213569).
10302042031 is an equidigital number, since it uses as much as digits as its factorization.
10302042031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3213568.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 10302042031 its reverse (13024020301), we get a palindrome (23326062332).
The spelling of 10302042031 in words is "ten billion, three hundred two million, forty-two thousand, thirty-one".
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