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313112223031 = 15110459198259
BaseRepresentation
bin1001000111001101111…
…00010101110100110111
31002221012022212222021011
410203212330111310313
520112223212114111
6355501453333051
731423132660666
oct4434674256467
91087168788234
10313112223031
11110876761563
1250824797187
13236ac53376a
1411224760ddd
1582288cc021
hex48e6f15d37

313112223031 has 8 divisors (see below), whose sum is σ = 315217539200. Its totient is φ = 311007324600.

The previous prime is 313112223007. The next prime is 313112223079. The reversal of 313112223031 is 130322211313.

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 313112223031 - 27 = 313112222903 is a prime.

It is a super-2 number, since 2×3131122230312 (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 = 313112222993 and 313112223011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313112223001) 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, 1480180 + ... + 1678438.

It is an arithmetic number, because the mean of its divisors is an integer number (39402192400).

Almost surely, 2313112223031 is an apocalyptic number.

313112223031 is a deficient number, since it is larger than the sum of its proper divisors (2105316169).

313112223031 is a wasteful number, since it uses less digits than its factorization.

313112223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208869.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 313112223031 its reverse (130322211313), we get a palindrome (443434434344).

The spelling of 313112223031 in words is "three hundred thirteen billion, one hundred twelve million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 151 10459 198259 1579309 29937109 2073590881 313112223031