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312430316 = 22117100689
BaseRepresentation
bin10010100111110…
…100111011101100
3210202220002211012
4102213310323230
51114440232231
651000244352
710512420362
oct2247647354
9722802735
10312430316
111503a4580
12887706b8
134c960913
142d6cb632
151c666e2b
hex129f4eec

312430316 has 12 divisors (see below), whose sum is σ = 596457960. Its totient is φ = 142013760.

The previous prime is 312430309. The next prime is 312430333. The reversal of 312430316 is 613034213.

It is a super-4 number, since 4×3124303164 (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 312430291 and 312430300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3550301 + ... + 3550388.

It is an arithmetic number, because the mean of its divisors is an integer number (49704830).

Almost surely, 2312430316 is an apocalyptic number.

It is an amenable number.

312430316 is a deficient number, since it is larger than the sum of its proper divisors (284027644).

312430316 is a wasteful number, since it uses less digits than its factorization.

312430316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100704 (or 7100702 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 312430316 is about 17675.6984586183. The cubic root of 312430316 is about 678.5539600051.

Adding to 312430316 its reverse (613034213), we get a palindrome (925464529).

The spelling of 312430316 in words is "three hundred twelve million, four hundred thirty thousand, three hundred sixteen".

Divisors: 1 2 4 11 22 44 7100689 14201378 28402756 78107579 156215158 312430316