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142242998 = 2154346093
BaseRepresentation
bin10000111101001…
…11010010110110
3100220122200201012
420132213102312
5242403233443
622040432222
73345021422
oct1036472266
9326580635
10142242998
11733242a7
123b778672
1323614271
1414c69b82
15c74b118
hex87a74b6

142242998 has 8 divisors (see below), whose sum is σ = 213507408. Its totient is φ = 71073864.

The previous prime is 142242917. The next prime is 142243019. The reversal of 142242998 is 899242241.

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

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 3 ways as a sum of consecutive naturals, for example, 19961 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (26688426).

Almost surely, 2142242998 is an apocalyptic number.

142242998 is a deficient number, since it is larger than the sum of its proper divisors (71264410).

142242998 is a wasteful number, since it uses less digits than its factorization.

142242998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47638.

The product of its digits is 82944, while the sum is 41.

The square root of 142242998 is about 11926.5668991542. The cubic root of 142242998 is about 522.0077679246.

The spelling of 142242998 in words is "one hundred forty-two million, two hundred forty-two thousand, nine hundred ninety-eight".

Divisors: 1 2 1543 3086 46093 92186 71121499 142242998