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3085208031 = 31028402677
BaseRepresentation
bin1011011111100100…
…1000100111011111
321222000100210210010
42313321020213133
522304303124111
61230050414303
7136311556413
oct26771104737
97860323703
103085208031
111343579504
12721291393
133a22492a9
14213a66d43
15130cc5aa6
hexb7e489df

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".

Divisors: 1 3 1028402677 3085208031