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313103112431 = 1731594123553
BaseRepresentation
bin1001000111001100110…
…01100101100011101111
31002221011200202002212112
410203212121211203233
520112213344044211
6355500530154235
731422662354324
oct4434631454357
91087150662775
10313103112431
111108715a963a
125082172297b
13236aa693985
141122346cb4b
158227bcc88b
hex48e66658ef

313103112431 has 8 divisors (see below), whose sum is σ = 342215167104. Its totient is φ = 285179304960.

The previous prime is 313103112409. The next prime is 313103112451. The reversal of 313103112431 is 134211301313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313103112431 is a prime.

It is a super-2 number, since 2×3131031124312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313103112397 and 313103112406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313103112451) 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, 297061250 + ... + 297062303.

It is an arithmetic number, because the mean of its divisors is an integer number (42776895888).

Almost surely, 2313103112431 is an apocalyptic number.

313103112431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

313103112431 is a deficient number, since it is larger than the sum of its proper divisors (29112054673).

313103112431 is a wasteful number, since it uses less digits than its factorization.

313103112431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594123601.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 313103112431 its reverse (134211301313), we get a palindrome (447314413744).

The spelling of 313103112431 in words is "three hundred thirteen billion, one hundred three million, one hundred twelve thousand, four hundred thirty-one".

Divisors: 1 17 31 527 594123553 10100100401 18417830143 313103112431