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313030220 = 22515651511
BaseRepresentation
bin10010101010000…
…111011001001100
3210211000120201212
4102222013121030
51120113431340
651021153552
710520466356
oct2252073114
9724016655
10313030220
11150774268
12889bb8b8
134cb109a9
142d8060d6
151c734a65
hex12a8764c

313030220 has 12 divisors (see below), whose sum is σ = 657363504. Its totient is φ = 125212080.

The previous prime is 313030183. The next prime is 313030247. The reversal of 313030220 is 22030313.

313030220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 313030195 and 313030204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7825736 + ... + 7825775.

It is an arithmetic number, because the mean of its divisors is an integer number (54780292).

Almost surely, 2313030220 is an apocalyptic number.

It is an amenable number.

313030220 is an abundant number, since it is smaller than the sum of its proper divisors (344333284).

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

313030220 is a wasteful number, since it uses less digits than its factorization.

313030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15651520 (or 15651518 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 313030220 is about 17692.6600600362. The cubic root of 313030220 is about 678.9879842255.

Adding to 313030220 its reverse (22030313), we get a palindrome (335060533).

The spelling of 313030220 in words is "three hundred thirteen million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 15651511 31303022 62606044 78257555 156515110 313030220