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206672 = 2412917
BaseRepresentation
bin110010011101010000
3101111111112
4302131100
523103142
64232452
71520354
oct623520
9344445
10206672
11131304
129b728
13730bb
1455464
1541382
hex32750

206672 has 10 divisors (see below), whose sum is σ = 400458. Its totient is φ = 103328.

The previous prime is 206651. The next prime is 206699. The reversal of 206672 is 276602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 179776 + 26896 = 424^2 + 164^2 .

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

206672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443 + ... + 6474.

2206672 is an apocalyptic number.

It is an amenable number.

206672 is a deficient number, since it is larger than the sum of its proper divisors (193786).

206672 is a wasteful number, since it uses less digits than its factorization.

206672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12925 (or 12919 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 206672 is about 454.6119224130. The cubic root of 206672 is about 59.1235560676.

It can be divided in two parts, 206 and 672, that added together give a palindrome (878).

The spelling of 206672 in words is "two hundred six thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 12917 25834 51668 103336 206672