Search a number
-
+
27202057 = 171600121
BaseRepresentation
bin110011111000…
…1001000001001
31220012000012121
41213301020021
523430431212
62411011241
7450133201
oct147611011
956160177
1027202057
111439a343
129139b21
1358355bc
143881401
1525c4d07
hex19f1209

27202057 has 4 divisors (see below), whose sum is σ = 28802196. Its totient is φ = 25601920.

The previous prime is 27202039. The next prime is 27202061. The reversal of 27202057 is 75020272.

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 24443136 + 2758921 = 4944^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 27202057 - 211 = 27200009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27202657) 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 3 ways as a sum of consecutive naturals, for example, 800044 + ... + 800077.

It is an arithmetic number, because the mean of its divisors is an integer number (7200549).

Almost surely, 227202057 is an apocalyptic number.

It is an amenable number.

27202057 is a deficient number, since it is larger than the sum of its proper divisors (1600139).

27202057 is a wasteful number, since it uses less digits than its factorization.

27202057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600138.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 27202057 is about 5215.5591263066. The cubic root of 27202057 is about 300.7465001768.

The spelling of 27202057 in words is "twenty-seven million, two hundred two thousand, fifty-seven".

Divisors: 1 17 1600121 27202057