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311310342 = 23275714327
BaseRepresentation
bin10010100011100…
…011100000000110
3210200210012111200
4102203203200012
51114143412332
650520243330
710500044220
oct2243434006
9720705450
10311310342
1114a7aa082
1288310546
134c65ac05
142d4b9410
151c4e517c
hex128e3806

311310342 has 48 divisors (see below), whose sum is σ = 772392192. Its totient is φ = 88769520.

The previous prime is 311310317. The next prime is 311310343. The reversal of 311310342 is 243013113.

311310342 is a `hidden beast` number, since 3 + 11 + 310 + 342 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311310343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69783 + ... + 74109.

It is an arithmetic number, because the mean of its divisors is an integer number (16091504).

Almost surely, 2311310342 is an apocalyptic number.

311310342 is an abundant number, since it is smaller than the sum of its proper divisors (461081850).

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

311310342 is a wasteful number, since it uses less digits than its factorization.

311310342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913 (or 4910 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 311310342 is about 17643.9888347278. The cubic root of 311310342 is about 677.7421814524.

Adding to 311310342 its reverse (243013113), we get a palindrome (554323455).

The spelling of 311310342 in words is "three hundred eleven million, three hundred ten thousand, three hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 571 1142 1713 3426 3997 4327 5139 7994 8654 10278 11991 12981 23982 25962 30289 35973 38943 60578 71946 77886 90867 181734 272601 545202 2470717 4941434 7412151 14824302 17295019 22236453 34590038 44472906 51885057 103770114 155655171 311310342