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307324140 = 22355122069
BaseRepresentation
bin10010010100010…
…110010011101100
3210102021200110120
4102110112103230
51112133333030
650255004540
710421132514
oct2224262354
9712250416
10307324140
111485271a2
1286b09750
134b893706
142cb5c844
151bea9010
hex125164ec

307324140 has 24 divisors (see below), whose sum is σ = 860507760. Its totient is φ = 81953088.

The previous prime is 307324123. The next prime is 307324153. The reversal of 307324140 is 41423703.

It is a self number, because there is not a number n which added to its sum of digits gives 307324140.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2560975 + ... + 2561094.

It is an arithmetic number, because the mean of its divisors is an integer number (35854490).

Almost surely, 2307324140 is an apocalyptic number.

307324140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307324140 is an abundant number, since it is smaller than the sum of its proper divisors (553183620).

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

307324140 is a wasteful number, since it uses less digits than its factorization.

307324140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122081 (or 5122079 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 307324140 is about 17530.6628511303. The cubic root of 307324140 is about 674.8370086568.

Adding to 307324140 its reverse (41423703), we get a palindrome (348747843).

The spelling of 307324140 in words is "three hundred seven million, three hundred twenty-four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5122069 10244138 15366207 20488276 25610345 30732414 51220690 61464828 76831035 102441380 153662070 307324140