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206020442 = 2831241087
BaseRepresentation
bin11000100011110…
…01111101011010
3112100122220220202
430101321331122
5410220123232
632235422202
75051100455
oct1421717532
9470586822
10206020442
11a6325231
1258bb4962
13338b46b4
141d50c49c
1513148162
hexc479f5a

206020442 has 8 divisors (see below), whose sum is σ = 312754176. Its totient is φ = 101769052.

The previous prime is 206020417. The next prime is 206020447. The reversal of 206020442 is 244020602.

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

It is not an unprimeable number, because it can be changed into a prime (206020447) 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, 620378 + ... + 620709.

It is an arithmetic number, because the mean of its divisors is an integer number (39094272).

Almost surely, 2206020442 is an apocalyptic number.

206020442 is a deficient number, since it is larger than the sum of its proper divisors (106733734).

206020442 is a wasteful number, since it uses less digits than its factorization.

206020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241172.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 206020442 is about 14353.4122075554. The cubic root of 206020442 is about 590.6135931916.

The spelling of 206020442 in words is "two hundred six million, twenty thousand, four hundred forty-two".

Divisors: 1 2 83 166 1241087 2482174 103010221 206020442