Base | Representation |
---|---|
bin | 10001000000001… |
… | …11111011010000 |
3 | 100221101210122112 |
4 | 20200013323100 |
5 | 243003420200 |
6 | 22053124452 |
7 | 3351260363 |
oct | 1040077320 |
9 | 327353575 |
10 | 142638800 |
11 | 73574707 |
12 | 3b929728 |
13 | 23722475 |
14 | 14d300da |
15 | c7c8535 |
hex | 8807ed0 |
142638800 has 60 divisors (see below), whose sum is σ = 344668416. Its totient is φ = 56726400.
The previous prime is 142638799. The next prime is 142638803. The reversal of 142638800 is 8836241.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142638803) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75467 + ... + 77333.
Almost surely, 2142638800 is an apocalyptic number.
142638800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142638800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172334208).
142638800 is an abundant number, since it is smaller than the sum of its proper divisors (202029616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142638800 is a wasteful number, since it uses less digits than its factorization.
142638800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2076 (or 2065 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 32.
The square root of 142638800 is about 11943.1486635644. The cubic root of 142638800 is about 522.4914950196.
The spelling of 142638800 in words is "one hundred forty-two million, six hundred thirty-eight thousand, eight hundred".
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