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313041042 = 23217391169
BaseRepresentation
bin10010101010001…
…010000010010010
3210211001010120200
4102222022002102
51120114303132
651021320030
710520543046
oct2252120222
9724033520
10313041042
11150781406
1288a06016
134cb158b2
142d80a026
151c737d7c
hex12a8a092

313041042 has 12 divisors (see below), whose sum is σ = 678255630. Its totient is φ = 104347008.

The previous prime is 313041041. The next prime is 313041049. The reversal of 313041042 is 240140313.

It can be written as a sum of positive squares in only one way, i.e., 219899241 + 93141801 = 14829^2 + 9651^2 .

It is a super-3 number, since 3×3130410423 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 17391169 = 313041042 / (3 + 1 + 3 + 0 + 4 + 1 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (313041041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8695567 + ... + 8695602.

Almost surely, 2313041042 is an apocalyptic number.

313041042 is an abundant number, since it is smaller than the sum of its proper divisors (365214588).

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

313041042 is a wasteful number, since it uses less digits than its factorization.

313041042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17391177 (or 17391174 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 313041042 is about 17692.9658904323. The cubic root of 313041042 is about 678.9958087344.

Adding to 313041042 its reverse (240140313), we get a palindrome (553181355).

The spelling of 313041042 in words is "three hundred thirteen million, forty-one thousand, forty-two".

Divisors: 1 2 3 6 9 18 17391169 34782338 52173507 104347014 156520521 313041042