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313213011 = 32322719997
BaseRepresentation
bin10010101010110…
…100000001010011
3210211100212110220
4102222310001103
51120140304021
651025124123
710522160316
oct2252640123
9724325426
10313213011
11150889631
1288a89643
134cb75c57
142d85297d
151c76dcc6
hex12ab4053

313213011 has 16 divisors (see below), whose sum is σ = 437716224. Its totient is φ = 198840224.

The previous prime is 313213003. The next prime is 313213013. The reversal of 313213011 is 110312313.

It is a cyclic number.

It is not a de Polignac number, because 313213011 - 23 = 313213003 is a prime.

It is a super-2 number, since 2×3132130112 = 196204780519372242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313213013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5665 + ... + 25661.

It is an arithmetic number, because the mean of its divisors is an integer number (27357264).

Almost surely, 2313213011 is an apocalyptic number.

313213011 is a deficient number, since it is larger than the sum of its proper divisors (124503213).

313213011 is a wasteful number, since it uses less digits than its factorization.

313213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20250.

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

The square root of 313213011 is about 17697.8250358625. The cubic root of 313213011 is about 679.1201213530.

Adding to 313213011 its reverse (110312313), we get a palindrome (423525324).

The spelling of 313213011 in words is "three hundred thirteen million, two hundred thirteen thousand, eleven".

Divisors: 1 3 23 69 227 681 5221 15663 19997 59991 459931 1379793 4539319 13617957 104404337 313213011