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313123200321 = 3787313257259
BaseRepresentation
bin1001000111001111001…
…10001101110101000001
31002221020002112200021110
410203213212031311001
520112234014402241
6355502524513533
731423325200521
oct4434746156501
91087202480243
10313123200321
111108819799a8
12508283ab8a9
13236b18a80b9
1411225dbb681
158229849816
hex48e798dd41

313123200321 has 8 divisors (see below), whose sum is σ = 417550660960. Its totient is φ = 208722269952.

The previous prime is 313123200319. The next prime is 313123200371. The reversal of 313123200321 is 123002321313.

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

It is not a de Polignac number, because 313123200321 - 21 = 313123200319 is a prime.

It is a super-2 number, since 2×3131232003212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313123200371) 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 7 ways as a sum of consecutive naturals, for example, 6605011 + ... + 6652248.

It is an arithmetic number, because the mean of its divisors is an integer number (52193832620).

Almost surely, 2313123200321 is an apocalyptic number.

It is an amenable number.

313123200321 is a deficient number, since it is larger than the sum of its proper divisors (104427460639).

313123200321 is a wasteful number, since it uses less digits than its factorization.

313123200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265135.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313123200321 its reverse (123002321313), we get a palindrome (436125521634).

The spelling of 313123200321 in words is "three hundred thirteen billion, one hundred twenty-three million, two hundred thousand, three hundred twenty-one".

Divisors: 1 3 7873 23619 13257259 39771777 104374400107 313123200321