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208148 = 22173061
BaseRepresentation
bin110010110100010100
3101120112012
4302310110
523130043
64243352
71524563
oct626424
9346465
10208148
11132426
12a0558
1373985
1455bda
1541a18
hex32d14

208148 has 12 divisors (see below), whose sum is σ = 385812. Its totient is φ = 97920.

The previous prime is 208147. The next prime is 208189. The reversal of 208148 is 841802.

It can be written as a sum of positive squares in 2 ways, for example, as 183184 + 24964 = 428^2 + 158^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (32151).

2208148 is an apocalyptic number.

It is an amenable number.

208148 is a deficient number, since it is larger than the sum of its proper divisors (177664).

208148 is a wasteful number, since it uses less digits than its factorization.

208148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3080 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 208148 is about 456.2323969207. The cubic root of 208148 is about 59.2639709024.

The spelling of 208148 in words is "two hundred eight thousand, one hundred forty-eight".

Divisors: 1 2 4 17 34 68 3061 6122 12244 52037 104074 208148