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208040 = 2357743
BaseRepresentation
bin110010110010101000
3101120101012
4302302220
523124130
64243052
71524350
oct626250
9346335
10208040
11132338
12a0488
1373901
1455b60
1541995
hex32ca8

208040 has 32 divisors (see below), whose sum is σ = 535680. Its totient is φ = 71232.

The previous prime is 208037. The next prime is 208049. The reversal of 208040 is 40802.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (208049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (16740).

2208040 is an apocalyptic number.

208040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208040 is an abundant number, since it is smaller than the sum of its proper divisors (327640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208040 is a wasteful number, since it uses less digits than its factorization.

208040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 208040 is about 456.1140208325. The cubic root of 208040 is about 59.2537191966.

Adding to 208040 its reverse (40802), we get a palindrome (248842).

The spelling of 208040 in words is "two hundred eight thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 743 1486 2972 3715 5201 5944 7430 10402 14860 20804 26005 29720 41608 52010 104020 208040