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313120222 = 21491050739
BaseRepresentation
bin10010101010011…
…101010111011110
3210211012011012021
4102222131113132
51120124321342
651023130354
710521322642
oct2252352736
9724164167
10313120222
11150825948
1288a439ba
134cb4294c
142d82ac22
151c751567
hex12a9d5de

313120222 has 8 divisors (see below), whose sum is σ = 472833000. Its totient is φ = 155509224.

The previous prime is 313120219. The next prime is 313120277. The reversal of 313120222 is 222021313.

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

It is a junction number, because it is equal to n+sod(n) for n = 313120196 and 313120205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525072 + ... + 525667.

It is an arithmetic number, because the mean of its divisors is an integer number (59104125).

Almost surely, 2313120222 is an apocalyptic number.

313120222 is a deficient number, since it is larger than the sum of its proper divisors (159712778).

313120222 is a wasteful number, since it uses less digits than its factorization.

313120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050890.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 313120222 is about 17695.2033613632. The cubic root of 313120222 is about 679.0530518737.

Adding to 313120222 its reverse (222021313), we get a palindrome (535141535).

The spelling of 313120222 in words is "three hundred thirteen million, one hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 149 298 1050739 2101478 156560111 313120222