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3131110023 = 31043703341
BaseRepresentation
bin1011101010100000…
…1111001010000111
322002012201212110220
42322220033022013
522403031010043
61234410315423
7140406665436
oct27250171207
98065655426
103131110023
111367480338
12734728b73
133ab8cb332
14219bb511d
15134d41483
hexbaa0f287

3131110023 has 4 divisors (see below), whose sum is σ = 4174813368. Its totient is φ = 2087406680.

The previous prime is 3131110013. The next prime is 3131110043. The reversal of 3131110023 is 3200111313.

3131110023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3131110023 - 28 = 3131109767 is a prime.

It is a super-2 number, since 2×31311100232 = 19607699952262121058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3131109984 and 3131110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131110013) 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, 521851668 + ... + 521851673.

It is an arithmetic number, because the mean of its divisors is an integer number (1043703342).

Almost surely, 23131110023 is an apocalyptic number.

3131110023 is a deficient number, since it is larger than the sum of its proper divisors (1043703345).

3131110023 is a wasteful number, since it uses less digits than its factorization.

3131110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043703344.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3131110023 is about 55956.3224577884. The cubic root of 3131110023 is about 1462.9610922783.

Adding to 3131110023 its reverse (3200111313), we get a palindrome (6331221336).

The spelling of 3131110023 in words is "three billion, one hundred thirty-one million, one hundred ten thousand, twenty-three".

Divisors: 1 3 1043703341 3131110023