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4308681 = 313110479
BaseRepresentation
bin10000011011111011001001
322002220101210
4100123323021
52100334211
6232203333
751423516
oct20337311
98086353
104308681
1124831a3
121539549
13b7b220
1480230d
155a19a6
hex41bec9

4308681 has 8 divisors (see below), whose sum is σ = 6186880. Its totient is φ = 2651472.

The previous prime is 4308677. The next prime is 4308691. The reversal of 4308681 is 1868034.

It is a happy number.

4308681 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4308681 - 22 = 4308677 is a prime.

It is a super-2 number, since 2×43086812 = 37129463919522, which contains 22 as substring.

It is a Duffinian number.

4308681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4308671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55201 + ... + 55278.

It is an arithmetic number, because the mean of its divisors is an integer number (773360).

Almost surely, 24308681 is an apocalyptic number.

It is an amenable number.

4308681 is a deficient number, since it is larger than the sum of its proper divisors (1878199).

4308681 is a wasteful number, since it uses less digits than its factorization.

4308681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110495.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 4308681 is about 2075.7362549226. The cubic root of 4308681 is about 162.7226895592.

The spelling of 4308681 in words is "four million, three hundred eight thousand, six hundred eighty-one".

Divisors: 1 3 13 39 110479 331437 1436227 4308681