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206176442 = 2176064013
BaseRepresentation
bin11000100101000…
…00000010111010
3112100221211220112
430102200002322
5410240121232
632243024322
75052320333
oct1422400272
9470854815
10206176442
11a642145a
125906b0a2
133393a6c4
141d54d28a
15131794b2
hexc4a00ba

206176442 has 8 divisors (see below), whose sum is σ = 327456756. Its totient is φ = 97024192.

The previous prime is 206176441. The next prime is 206176447. The reversal of 206176442 is 244671602.

It can be written as a sum of positive squares in 2 ways, for example, as 201895681 + 4280761 = 14209^2 + 2069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 206176399 and 206176408.

It is not an unprimeable number, because it can be changed into a prime (206176441) 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, 3031973 + ... + 3032040.

Almost surely, 2206176442 is an apocalyptic number.

206176442 is a deficient number, since it is larger than the sum of its proper divisors (121280314).

206176442 is a wasteful number, since it uses less digits than its factorization.

206176442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064032.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 206176442 is about 14358.8454271226. The cubic root of 206176442 is about 590.7626277149.

The spelling of 206176442 in words is "two hundred six million, one hundred seventy-six thousand, four hundred forty-two".

Divisors: 1 2 17 34 6064013 12128026 103088221 206176442