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313220226 = 23114745761
BaseRepresentation
bin10010101010110…
…101110010000010
3210211101020101010
4102222311302002
51120141021401
651025221350
710522220334
oct2252656202
9724336333
10313220226
11150893aa0
1288a91856
134cb79317
142d855454
151c770ed6
hex12ab5c82

313220226 has 16 divisors (see below), whose sum is σ = 683389728. Its totient is φ = 94915200.

The previous prime is 313220209. The next prime is 313220231. The reversal of 313220226 is 622022313.

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 7 ways as a sum of consecutive naturals, for example, 2372815 + ... + 2372946.

It is an arithmetic number, because the mean of its divisors is an integer number (42711858).

Almost surely, 2313220226 is an apocalyptic number.

313220226 is an abundant number, since it is smaller than the sum of its proper divisors (370169502).

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

313220226 is a wasteful number, since it uses less digits than its factorization.

313220226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745777.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 313220226 is about 17698.0288732955. The cubic root of 313220226 is about 679.1253359236.

Adding to 313220226 its reverse (622022313), we get a palindrome (935242539).

The spelling of 313220226 in words is "three hundred thirteen million, two hundred twenty thousand, two hundred twenty-six".

Divisors: 1 2 3 6 11 22 33 66 4745761 9491522 14237283 28474566 52203371 104406742 156610113 313220226