Search a number
-
+
27897085 = 517476983
BaseRepresentation
bin110101001101…
…0110011111101
31221111022121101
41222122303331
524120201320
62433533101
7456056416
oct152326375
957438541
1027897085
1114824547
129414191
135a19a68
1439c280d
1526b0c0a
hex1a9acfd

27897085 has 16 divisors (see below), whose sum is σ = 36205056. Its totient is φ = 20555008.

The previous prime is 27897083. The next prime is 27897131. The reversal of 27897085 is 58079872.

It is a cyclic number.

It is not a de Polignac number, because 27897085 - 21 = 27897083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27897083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504 + ... + 7486.

It is an arithmetic number, because the mean of its divisors is an integer number (2262816).

Almost surely, 227897085 is an apocalyptic number.

It is an amenable number.

27897085 is a deficient number, since it is larger than the sum of its proper divisors (8307971).

27897085 is a wasteful number, since it uses less digits than its factorization.

27897085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 27897085 is about 5281.7691164988. The cubic root of 27897085 is about 303.2864040697.

The spelling of 27897085 in words is "twenty-seven million, eight hundred ninety-seven thousand, eighty-five".

Divisors: 1 5 17 47 85 235 799 3995 6983 34915 118711 328201 593555 1641005 5579417 27897085