Search a number
-
+
27830713 = 235920509
BaseRepresentation
bin110101000101…
…0100110111001
31221100221120011
41222022212321
524111040323
62432301521
7455362051
oct152124671
957327504
1027830713
1114789699
1293a18a1
1359c57a1
1439a6561
15269b20d
hex1a8a9b9

27830713 has 8 divisors (see below), whose sum is σ = 29534400. Its totient is φ = 26168208.

The previous prime is 27830707. The next prime is 27830729. The reversal of 27830713 is 31703872.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27830713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27830743) 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 7 ways as a sum of consecutive naturals, for example, 8898 + ... + 11611.

It is an arithmetic number, because the mean of its divisors is an integer number (3691800).

Almost surely, 227830713 is an apocalyptic number.

27830713 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

27830713 is a deficient number, since it is larger than the sum of its proper divisors (1703687).

27830713 is a wasteful number, since it uses less digits than its factorization.

27830713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20591.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 27830713 is about 5275.4822528372. The cubic root of 27830713 is about 303.0456894289.

The spelling of 27830713 in words is "twenty-seven million, eight hundred thirty thousand, seven hundred thirteen".

Divisors: 1 23 59 1357 20509 471707 1210031 27830713