Base | Representation |
---|---|
bin | 1011011111100100… |
… | …1000100111011111 |
3 | 21222000100210210010 |
4 | 2313321020213133 |
5 | 22304303124111 |
6 | 1230050414303 |
7 | 136311556413 |
oct | 26771104737 |
9 | 7860323703 |
10 | 3085208031 |
11 | 1343579504 |
12 | 721291393 |
13 | 3a22492a9 |
14 | 213a66d43 |
15 | 130cc5aa6 |
hex | b7e489df |
3085208031 has 4 divisors (see below), whose sum is σ = 4113610712. Its totient is φ = 2056805352.
The previous prime is 3085208003. The next prime is 3085208033. The reversal of 3085208031 is 1308025803.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 3085208031 - 211 = 3085205983 is a prime.
It is a super-2 number, since 2×30852080312 = 19037017189093793922, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 3085208031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3085208033) 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, 514201336 + ... + 514201341.
It is an arithmetic number, because the mean of its divisors is an integer number (1028402678).
Almost surely, 23085208031 is an apocalyptic number.
3085208031 is a deficient number, since it is larger than the sum of its proper divisors (1028402681).
3085208031 is a wasteful number, since it uses less digits than its factorization.
3085208031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1028402680.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 3085208031 is about 55544.6489861985. The cubic root of 3085208031 is about 1455.7768796732.
The spelling of 3085208031 in words is "three billion, eighty-five million, two hundred eight thousand, thirty-one".
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