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206802142 = 2262139451
BaseRepresentation
bin11000101001110…
…00110011011110
3112102010122012121
430110320303132
5410420132032
632304253154
75060534461
oct1424706336
9472118177
10206802142
11a6809568
12593111ba
1333ac9441
141d6732d8
151324ea97
hexc538cde

206802142 has 8 divisors (see below), whose sum is σ = 310329432. Its totient is φ = 103359000.

The previous prime is 206802121. The next prime is 206802143. The reversal of 206802142 is 241208602.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206802143) 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, 14484 + ... + 24967.

It is an arithmetic number, because the mean of its divisors is an integer number (38791179).

Almost surely, 2206802142 is an apocalyptic number.

206802142 is a deficient number, since it is larger than the sum of its proper divisors (103527290).

206802142 is a wasteful number, since it uses less digits than its factorization.

206802142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42074.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 206802142 is about 14380.6168852383. The cubic root of 206802142 is about 591.3596355920.

It can be divided in two parts, 20680 and 2142, that added together give a palindrome (22822).

The spelling of 206802142 in words is "two hundred six million, eight hundred two thousand, one hundred forty-two".

Divisors: 1 2 2621 5242 39451 78902 103401071 206802142