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313230222 = 232127713627
BaseRepresentation
bin10010101010111…
…000001110001110
3210211101202002100
4102222320032032
51120141331342
651025335530
710522261434
oct2252701616
9724352070
10313230222
111508a0558
1288a975a6
134cb80a36
142d858d54
151c773e4c
hex12ab838e

313230222 has 24 divisors (see below), whose sum is σ = 679246776. Its totient is φ = 104320656.

The previous prime is 313230217. The next prime is 313230227. The reversal of 313230222 is 222032313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (313230217) and next prime (313230227).

It is a super-2 number, since 2×3132302222 = 196226343948338568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 313230195 and 313230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313230227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16173 + ... + 29799.

It is an arithmetic number, because the mean of its divisors is an integer number (28301949).

Almost surely, 2313230222 is an apocalyptic number.

313230222 is an abundant number, since it is smaller than the sum of its proper divisors (366016554).

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

313230222 is a wasteful number, since it uses less digits than its factorization.

313230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14912 (or 14909 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 313230222 is about 17698.3112753731. The cubic root of 313230222 is about 679.1325603023.

Adding to 313230222 its reverse (222032313), we get a palindrome (535262535).

The spelling of 313230222 in words is "three hundred thirteen million, two hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 1277 2554 3831 7662 11493 13627 22986 27254 40881 81762 122643 245286 17401679 34803358 52205037 104410074 156615111 313230222