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255340142 = 21151110921
BaseRepresentation
bin11110011100000…
…10111001101110
3122210110121211022
433032002321232
51010331341032
641200454142
76220232621
oct1716027156
9583417738
10255340142
11121150912
127161a352
1340b92255
1425ca9db8
151763b512
hexf382e6e

255340142 has 8 divisors (see below), whose sum is σ = 383346432. Its totient is φ = 127558000.

The previous prime is 255340117. The next prime is 255340159. The reversal of 255340142 is 241043552.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53159 + ... + 57762.

It is an arithmetic number, because the mean of its divisors is an integer number (47918304).

Almost surely, 2255340142 is an apocalyptic number.

255340142 is a deficient number, since it is larger than the sum of its proper divisors (128006290).

255340142 is a wasteful number, since it uses less digits than its factorization.

255340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112074.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 255340142 is about 15979.3661326099. The cubic root of 255340142 is about 634.4143996722.

Adding to 255340142 its reverse (241043552), we get a palindrome (496383694).

The spelling of 255340142 in words is "two hundred fifty-five million, three hundred forty thousand, one hundred forty-two".

Divisors: 1 2 1151 2302 110921 221842 127670071 255340142