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3830681 = 5372277
BaseRepresentation
bin1110100111001110011001
321012121201002
432213032121
51440040211
6214034345
744363111
oct16471631
97177632
103830681
112187058
1213489b5
13a4179a
1471a041
1550a03b
hex3a7399

3830681 has 4 divisors (see below), whose sum is σ = 3903012. Its totient is φ = 3758352.

The previous prime is 3830669. The next prime is 3830689. The reversal of 3830681 is 1860383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3182656 + 648025 = 1784^2 + 805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3830681 is a prime.

It is a super-2 number, since 2×38306812 = 29348233847522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3830689) 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 3 ways as a sum of consecutive naturals, for example, 36086 + ... + 36191.

It is an arithmetic number, because the mean of its divisors is an integer number (975753).

Almost surely, 23830681 is an apocalyptic number.

It is an amenable number.

3830681 is a deficient number, since it is larger than the sum of its proper divisors (72331).

3830681 is an equidigital number, since it uses as much as digits as its factorization.

3830681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72330.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3830681 is about 1957.2125587171. The cubic root of 3830681 is about 156.4679271616.

The spelling of 3830681 in words is "three million, eight hundred thirty thousand, six hundred eighty-one".

Divisors: 1 53 72277 3830681