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320030316 = 223237240263
BaseRepresentation
bin10011000100110…
…100011001101100
3211022012020001200
4103010310121230
51123411432231
651431205500
710634132664
oct2304643154
9738166050
10320030316
11154715571
128b216890
13513c1c68
14307091a4
151d168be6
hex1313466c

320030316 has 36 divisors (see below), whose sum is σ = 830832912. Its totient is φ = 103793184.

The previous prime is 320030311. The next prime is 320030323. The reversal of 320030316 is 613030023.

It is a happy number.

320030316 is a `hidden beast` number, since 320 + 0 + 30 + 316 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (320030311) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 118800 + ... + 121463.

It is an arithmetic number, because the mean of its divisors is an integer number (23078692).

Almost surely, 2320030316 is an apocalyptic number.

320030316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320030316 is an abundant number, since it is smaller than the sum of its proper divisors (510802596).

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

320030316 is a wasteful number, since it uses less digits than its factorization.

320030316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240310 (or 240305 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 320030316 is about 17889.3911578902. The cubic root of 320030316 is about 684.0119778348.

Adding to 320030316 its reverse (613030023), we get a palindrome (933060339).

The spelling of 320030316 in words is "three hundred twenty million, thirty thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 240263 480526 720789 961052 1441578 2162367 2883156 4324734 8649468 8889731 17779462 26669193 35558924 53338386 80007579 106676772 160015158 320030316