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30682641 = 311929777
BaseRepresentation
bin111010100001…
…0111000010001
32010201211200010
41311002320101
530323321031
63013345133
7521540523
oct165027021
963654603
1030682641
1116357360
12a3381a9
136483912
144109a13
152a61246
hex1d42e11

30682641 has 8 divisors (see below), whose sum is σ = 44629344. Its totient is φ = 18595520.

The previous prime is 30682627. The next prime is 30682649. The reversal of 30682641 is 14628603.

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

It is a cyclic number.

It is not a de Polignac number, because 30682641 - 29 = 30682129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30682599 and 30682608.

It is not an unprimeable number, because it can be changed into a prime (30682649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464856 + ... + 464921.

It is an arithmetic number, because the mean of its divisors is an integer number (5578668).

Almost surely, 230682641 is an apocalyptic number.

It is an amenable number.

30682641 is a deficient number, since it is larger than the sum of its proper divisors (13946703).

30682641 is a wasteful number, since it uses less digits than its factorization.

30682641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929791.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30682641 is about 5539.1913669777. The cubic root of 30682641 is about 313.0624018594.

The spelling of 30682641 in words is "thirty million, six hundred eighty-two thousand, six hundred forty-one".

Divisors: 1 3 11 33 929777 2789331 10227547 30682641