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313131010999 = 5317773324779
BaseRepresentation
bin1001000111010000001…
…00000000101110110111
31002221020122020111111211
410203220010000232313
520112243014322444
6355503404142251
731423451451262
oct4435004005667
91087218214454
10313131010999
11110886324204
125082ab37987
13236b33b12c1
1411227051cd9
15822a38dc34
hex48e8100bb7

313131010999 has 8 divisors (see below), whose sum is σ = 319218777360. Its totient is φ = 307049897856.

The previous prime is 313131010987. The next prime is 313131011023. The reversal of 313131010999 is 999010131313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313131010999 - 29 = 313131010487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313131010979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568209 + ... + 1756570.

It is an arithmetic number, because the mean of its divisors is an integer number (39902347170).

Almost surely, 2313131010999 is an apocalyptic number.

313131010999 is a deficient number, since it is larger than the sum of its proper divisors (6087766361).

313131010999 is a wasteful number, since it uses less digits than its factorization.

313131010999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326609.

The product of its (nonzero) digits is 19683, while the sum is 40.

The spelling of 313131010999 in words is "three hundred thirteen billion, one hundred thirty-one million, ten thousand, nine hundred ninety-nine".

Divisors: 1 53 1777 94181 3324779 176213287 5908132283 313131010999