Base | Representation |
---|---|
bin | 10000111110010… |
… | …10011100100100 |
3 | 100220221000012212 |
4 | 20133022130210 |
5 | 242422340410 |
6 | 22043502552 |
7 | 3346161251 |
oct | 1037123444 |
9 | 326830185 |
10 | 142386980 |
11 | 7341249a |
12 | 3b827a58 |
13 | 23664968 |
14 | 14ca6428 |
15 | c778b05 |
hex | 87ca724 |
142386980 has 12 divisors (see below), whose sum is σ = 299012700. Its totient is φ = 56954784.
The previous prime is 142386967. The next prime is 142386983. The reversal of 142386980 is 89683241.
It can be written as a sum of positive squares in 2 ways, for example, as 28153636 + 114233344 = 5306^2 + 10688^2 .
It is a super-3 number, since 3×1423869803 (a number of 25 digits) contains 333 as substring.
It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (142386983) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3559655 + ... + 3559694.
It is an arithmetic number, because the mean of its divisors is an integer number (24917725).
Almost surely, 2142386980 is an apocalyptic number.
142386980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
142386980 is an abundant number, since it is smaller than the sum of its proper divisors (156625720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142386980 is a wasteful number, since it uses less digits than its factorization.
142386980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7119358 (or 7119356 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 41.
The square root of 142386980 is about 11932.6015604310. The cubic root of 142386980 is about 522.1838384008.
The spelling of 142386980 in words is "one hundred forty-two million, three hundred eighty-six thousand, nine hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •