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142144206 = 23191246879
BaseRepresentation
bin10000111100011…
…11001011001110
3100220110200012020
420132033023032
5242342103311
622034351010
73344130411
oct1036171316
9326420166
10142144206
1173267056
123b72b466
13235ab2c9
1414c41b78
15c72bc06
hex878f2ce

142144206 has 16 divisors (see below), whose sum is σ = 299251200. Its totient is φ = 44887608.

The previous prime is 142144199. The next prime is 142144237. The reversal of 142144206 is 602441241.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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, 623326 + ... + 623553.

It is an arithmetic number, because the mean of its divisors is an integer number (18703200).

Almost surely, 2142144206 is an apocalyptic number.

142144206 is an abundant number, since it is smaller than the sum of its proper divisors (157106994).

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

142144206 is a wasteful number, since it uses less digits than its factorization.

142144206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246903.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 142144206 is about 11922.4245017530. The cubic root of 142144206 is about 521.8868899534.

Adding to 142144206 its reverse (602441241), we get a palindrome (744585447).

The spelling of 142144206 in words is "one hundred forty-two million, one hundred forty-four thousand, two hundred six".

Divisors: 1 2 3 6 19 38 57 114 1246879 2493758 3740637 7481274 23690701 47381402 71072103 142144206