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3131352742 = 27261751787
BaseRepresentation
bin1011101010100100…
…1010011010100110
322002020012012102111
42322221022122212
522403111241432
61234415431234
7140412026200
oct27251123246
98066165374
103131352742
111367626731
1273482551a
133ab98495b
14219c39770
15134d8d347
hexbaa4a6a6

3131352742 has 24 divisors (see below), whose sum is σ = 5472852264. Its totient is φ = 1339807392.

The previous prime is 3131352713. The next prime is 3131352743. The reversal of 3131352742 is 2472531313.

3131352742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131352743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34573 + ... + 86359.

It is an arithmetic number, because the mean of its divisors is an integer number (228035511).

Almost surely, 23131352742 is an apocalyptic number.

3131352742 is a deficient number, since it is larger than the sum of its proper divisors (2341499522).

3131352742 is a wasteful number, since it uses less digits than its factorization.

3131352742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52420 (or 52413 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 3131352742 is about 55958.4912412763. The cubic root of 3131352742 is about 1462.9988934921.

The spelling of 3131352742 in words is "three billion, one hundred thirty-one million, three hundred fifty-two thousand, seven hundred forty-two".

Divisors: 1 2 7 14 49 98 617 1234 4319 8638 30233 51787 60466 103574 362509 725018 2537563 5075126 31952579 63905158 223668053 447336106 1565676371 3131352742