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206142042 = 23120128607
BaseRepresentation
bin11000100100101…
…11101001011010
3112100220002201110
430102113221122
5410233021132
632242201150
75052115131
oct1422275132
9470802643
10206142042
11a63a8627
12590531b6
1333927b52
141d540918
151316e1cc
hexc497a5a

206142042 has 16 divisors (see below), whose sum is σ = 412641792. Its totient is φ = 68654400.

The previous prime is 206142023. The next prime is 206142061. The reversal of 206142042 is 240241602.

206142042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (206142023) and next prime (206142061).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7098 + ... + 21509.

It is an arithmetic number, because the mean of its divisors is an integer number (25790112).

Almost surely, 2206142042 is an apocalyptic number.

206142042 is an abundant number, since it is smaller than the sum of its proper divisors (206499750).

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

206142042 is a wasteful number, since it uses less digits than its factorization.

206142042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29813.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 206142042 is about 14357.6475092544. The cubic root of 206142042 is about 590.7297701544.

Adding to 206142042 its reverse (240241602), we get a palindrome (446383644).

The spelling of 206142042 in words is "two hundred six million, one hundred forty-two thousand, forty-two".

Divisors: 1 2 3 6 1201 2402 3603 7206 28607 57214 85821 171642 34357007 68714014 103071021 206142042