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213095 = 51723109
BaseRepresentation
bin110100000001100111
3101211022102
4310001213
523304340
64322315
71545161
oct640147
9354272
10213095
11136113
12a339b
1375cbc
1457931
1543215
hex34067

213095 has 16 divisors (see below), whose sum is σ = 285120. Its totient is φ = 152064.

The previous prime is 213091. The next prime is 213097. The reversal of 213095 is 590312.

It is a cyclic number.

It is not a de Polignac number, because 213095 - 22 = 213091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213091) 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, 1901 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2213095 is an apocalyptic number.

213095 is a deficient number, since it is larger than the sum of its proper divisors (72025).

213095 is a wasteful number, since it uses less digits than its factorization.

213095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 213095 is about 461.6221398503. The cubic root of 213095 is about 59.7298035765.

The spelling of 213095 in words is "two hundred thirteen thousand, ninety-five".

Divisors: 1 5 17 23 85 109 115 391 545 1853 1955 2507 9265 12535 42619 213095