Search a number
-
+
31023313012313 = 40985398882963
BaseRepresentation
bin1110000110111001011011…
…00011010100011001011001
311001211210121000122220201122
413003130231203110121121
513031241221112343223
6145551525132255025
76351234421441166
oct703345543243131
9131753530586648
1031023313012313
119980a05468176
123590638911475
13144064159c71b
14793771ac106d
1538bec307e5c8
hex1c372d8d4659

31023313012313 has 8 divisors (see below), whose sum is σ = 31102810149600. Its totient is φ = 30943833658848.

The previous prime is 31023313012231. The next prime is 31023313012357. The reversal of 31023313012313 is 31321031332013.

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 31023313012313 - 234 = 31006133143129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31023313014313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949031 + ... + 7933932.

It is an arithmetic number, because the mean of its divisors is an integer number (3887851268700).

Almost surely, 231023313012313 is an apocalyptic number.

It is an amenable number.

31023313012313 is a deficient number, since it is larger than the sum of its proper divisors (79497137287).

31023313012313 is an equidigital number, since it uses as much as digits as its factorization.

31023313012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891911.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31023313012313 its reverse (31321031332013), we get a palindrome (62344344344326).

The spelling of 31023313012313 in words is "thirty-one trillion, twenty-three billion, three hundred thirteen million, twelve thousand, three hundred thirteen".

Divisors: 1 409 8539 3492451 8882963 3633131867 75851621057 31023313012313