Base | Representation |
---|---|
bin | 1011010000000110… |
… | …0100011000001111 |
3 | 21210111020122110111 |
4 | 2310001210120033 |
5 | 22141144410111 |
6 | 1215411420451 |
7 | 134563132414 |
oct | 26401443017 |
9 | 7714218414 |
10 | 3020310031 |
11 | 130a9826a2 |
12 | 7035b4727 |
13 | 391975acb |
14 | 2091b210b |
15 | 12a256a21 |
hex | b406460f |
3020310031 has 4 divisors (see below), whose sum is σ = 3035641752. Its totient is φ = 3004978312.
The previous prime is 3020310017. The next prime is 3020310043. The reversal of 3020310031 is 1300130203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300130203 = 71 ⋅18311693.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-3020310031 is a prime.
It is a super-2 number, since 2×30203100312 = 18244545366718441922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 3020309993 and 3020310020.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3020310131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7665565 + ... + 7665958.
It is an arithmetic number, because the mean of its divisors is an integer number (758910438).
Almost surely, 23020310031 is an apocalyptic number.
3020310031 is a deficient number, since it is larger than the sum of its proper divisors (15331721).
3020310031 is a wasteful number, since it uses less digits than its factorization.
3020310031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15331720.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 3020310031 is about 54957.3473795816. The cubic root of 3020310031 is about 1445.4969345634.
Adding to 3020310031 its reverse (1300130203), we get a palindrome (4320440234).
The spelling of 3020310031 in words is "three billion, twenty million, three hundred ten thousand, thirty-one".
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