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313130222 = 2198240269
BaseRepresentation
bin10010101010011…
…111110011101110
3210211012122220122
4102222133303232
51120130131342
651023244542
710521364046
oct2252376356
9724178818
10313130222
11150832409
1288a49752
134cb47372
142d830726
151c7544d2
hex12a9fcee

313130222 has 8 divisors (see below), whose sum is σ = 494416200. Its totient is φ = 148324824.

The previous prime is 313130189. The next prime is 313130227. The reversal of 313130222 is 222031313.

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

It is a self number, because there is not a number n which added to its sum of digits gives 313130222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313130227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4120097 + ... + 4120172.

It is an arithmetic number, because the mean of its divisors is an integer number (61802025).

Almost surely, 2313130222 is an apocalyptic number.

313130222 is a deficient number, since it is larger than the sum of its proper divisors (181285978).

313130222 is a wasteful number, since it uses less digits than its factorization.

313130222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8240290.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 313130222 is about 17695.4859215564. The cubic root of 313130222 is about 679.0602806821.

Adding to 313130222 its reverse (222031313), we get a palindrome (535161535).

The spelling of 313130222 in words is "three hundred thirteen million, one hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 19 38 8240269 16480538 156565111 313130222