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313121313310 = 25134831498577
BaseRepresentation
bin1001000111001110111…
…11000001001000011110
31002221012221222210210011
410203213133001020132
520112233024011220
6355502420233434
731423303151161
oct4434737011036
91087187883704
10313121313310
11110880900193
125082783b87a
13236b1397220
1411225a49ad8
1582295c565a
hex48e77c121e

313121313310 has 32 divisors (see below), whose sum is σ = 607100481792. Its totient is φ = 115589859840.

The previous prime is 313121313293. The next prime is 313121313313. The reversal of 313121313310 is 13313121313.

It is a super-2 number, since 2×3131213133102 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313121313313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378742 + ... + 877318.

It is an arithmetic number, because the mean of its divisors is an integer number (18971890056).

Almost surely, 2313121313310 is an apocalyptic number.

313121313310 is a deficient number, since it is larger than the sum of its proper divisors (293979168482).

313121313310 is a wasteful number, since it uses less digits than its factorization.

313121313310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503428.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 313121313310 its reverse (13313121313), we get a palindrome (326434434623).

The spelling of 313121313310 in words is "three hundred thirteen billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 65 130 4831 9662 24155 48310 62803 125606 314015 498577 628030 997154 2492885 4985770 6481501 12963002 32407505 64815010 2408625487 4817250974 12043127435 24086254870 31312131331 62624262662 156560656655 313121313310