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208495 = 5722337
BaseRepresentation
bin110010111001101111
3101121000001
4302321233
523132440
64245131
71525600
oct627157
9347001
10208495
11132711
12a07a7
1373b91
1455da7
1541b9a
hex32e6f

208495 has 24 divisors (see below), whose sum is σ = 311904. Its totient is φ = 133056.

The previous prime is 208493. The next prime is 208499. The reversal of 208495 is 594802.

It can be divided in two parts, 208 and 495, that added together give a triangular number (703 = T37).

It is a happy number.

It is not a de Polignac number, because 208495 - 21 = 208493 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208493) by changing a digit.

It is a Kaprekar number, because its square (43470165025) can be partitioned into two parts whose sum is 208495.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5617 + ... + 5653.

It is an arithmetic number, because the mean of its divisors is an integer number (12996).

2208495 is an apocalyptic number.

208495 is a deficient number, since it is larger than the sum of its proper divisors (103409).

208495 is a wasteful number, since it uses less digits than its factorization.

208495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 208495 is about 456.6125272044. The cubic root of 208495 is about 59.2968852724.

The spelling of 208495 in words is "two hundred eight thousand, four hundred ninety-five".

Divisors: 1 5 7 23 35 37 49 115 161 185 245 259 805 851 1127 1295 1813 4255 5635 5957 9065 29785 41699 208495