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3131441244 = 223286984479
BaseRepresentation
bin1011101010100110…
…0000000001011100
322002020100200211100
42322221200001130
522403122104434
61234421353100
7140412545211
oct27251400134
98066320740
103131441244
111367687178
12734868790
133ab9b6019
14219c5db08
15134da9699
hexbaa6005c

3131441244 has 18 divisors (see below), whose sum is σ = 7915587680. Its totient is φ = 1043813736.

The previous prime is 3131441219. The next prime is 3131441249. The reversal of 3131441244 is 4421441313.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×31314412443 (a number of 29 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131441249) 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 5 ways as a sum of consecutive naturals, for example, 43492204 + ... + 43492275.

Almost surely, 23131441244 is an apocalyptic number.

It is an amenable number.

3131441244 is an abundant number, since it is smaller than the sum of its proper divisors (4784146436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131441244 is a wasteful number, since it uses less digits than its factorization.

3131441244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86984489 (or 86984484 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 3131441244 is about 55959.2820182675. The cubic root of 3131441244 is about 1463.0126763648.

Adding to 3131441244 its reverse (4421441313), we get a palindrome (7552882557).

The spelling of 3131441244 in words is "three billion, one hundred thirty-one million, four hundred forty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 86984479 173968958 260953437 347937916 521906874 782860311 1043813748 1565720622 3131441244