Search a number
-
+
313111010212 = 22711131015871319
BaseRepresentation
bin1001000111001101101…
…11101101101110100100
31002221012020121100120221
410203212313231232210
520112222404311322
6355501411334124
731423116450040
oct4434667555644
91087166540527
10313111010212
11110876003330
12508242b1344
13236ac1ca710
1411224527020
15822873c9c7
hex48e6dedba4

313111010212 has 192 divisors, whose sum is σ = 744815554560. Its totient is φ = 111218112000.

The previous prime is 313111010183. The next prime is 313111010231. The reversal of 313111010212 is 212010111313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 237384489 + ... + 237385807.

It is an arithmetic number, because the mean of its divisors is an integer number (3879247680).

Almost surely, 2313111010212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313111010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372407777280).

313111010212 is an abundant number, since it is smaller than the sum of its proper divisors (431704544348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313111010212 is a wasteful number, since it uses less digits than its factorization.

313111010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2040 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 313111010212 its reverse (212010111313), we get a palindrome (525121121525).

The spelling of 313111010212 in words is "three hundred thirteen billion, one hundred eleven million, ten thousand, two hundred twelve".