Search a number
-
+
313211013 = 34113611871
BaseRepresentation
bin10010101010110…
…011100010000101
3210211100202201220
4102222303202011
51120140223023
651025110553
710522151433
oct2252634205
9724322656
10313211013
11150888085
1288a88459
134cb7507b
142d851d53
151c76d3e3
hex12ab3885

313211013 has 16 divisors (see below), whose sum is σ = 428343552. Its totient is φ = 203456000.

The previous prime is 313210981. The next prime is 313211053. The reversal of 313211013 is 310112313.

It is a cyclic number.

It is not a de Polignac number, because 313211013 - 25 = 313210981 is a prime.

It is a super-2 number, since 2×3132110132 = 196202277328972338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313210983 and 313211001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313211053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166468 + ... + 168338.

It is an arithmetic number, because the mean of its divisors is an integer number (26771472).

Almost surely, 2313211013 is an apocalyptic number.

It is an amenable number.

313211013 is a deficient number, since it is larger than the sum of its proper divisors (115132539).

313211013 is a wasteful number, since it uses less digits than its factorization.

313211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 313211013 is about 17697.7685881582. The cubic root of 313211013 is about 679.1186773039.

Adding to 313211013 its reverse (310112313), we get a palindrome (623323326).

The spelling of 313211013 in words is "three hundred thirteen million, two hundred eleven thousand, thirteen".

Divisors: 1 3 41 123 1361 1871 4083 5613 55801 76711 167403 230133 2546431 7639293 104403671 313211013