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313031022 = 2379660403
BaseRepresentation
bin10010101010000…
…111100101101110
3210211000121211120
4102222013211232
51120113443042
651021201410
710520501613
oct2252074556
9724017746
10313031022
11150774927
1288a00266
134cb11175
142d80650a
151c734dec
hex12a8796e

313031022 has 16 divisors (see below), whose sum is σ = 633987840. Its totient is φ = 103022712.

The previous prime is 313031021. The next prime is 313031027. The reversal of 313031022 is 220130313.

It is a junction number, because it is equal to n+sod(n) for n = 313030992 and 313031010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313031021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329728 + ... + 330675.

It is an arithmetic number, because the mean of its divisors is an integer number (39624240).

Almost surely, 2313031022 is an apocalyptic number.

313031022 is an abundant number, since it is smaller than the sum of its proper divisors (320956818).

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

313031022 is a wasteful number, since it uses less digits than its factorization.

313031022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660487.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 313031022 is about 17692.6827247877. The cubic root of 313031022 is about 678.9885640927.

Adding to 313031022 its reverse (220130313), we get a palindrome (533161335).

The spelling of 313031022 in words is "three hundred thirteen million, thirty-one thousand, twenty-two".

Divisors: 1 2 3 6 79 158 237 474 660403 1320806 1981209 3962418 52171837 104343674 156515511 313031022