Base | Representation |
---|---|
bin | 10001000001100… |
… | …00000000100100 |
3 | 100221201010212021 |
4 | 20200300000210 |
5 | 243024143410 |
6 | 22100432524 |
7 | 3352543135 |
oct | 1040600044 |
9 | 327633767 |
10 | 142802980 |
11 | 73676aa1 |
12 | 3b9a8744 |
13 | 2377c108 |
14 | 14d73c8c |
15 | c80beda |
hex | 8830024 |
142802980 has 24 divisors (see below), whose sum is σ = 307992888. Its totient is φ = 55577088.
The previous prime is 142802963. The next prime is 142802987. The reversal of 142802980 is 89208241.
142802980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 88397604 + 54405376 = 9402^2 + 7376^2 .
It is not an unprimeable number, because it can be changed into a prime (142802987) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95749 + ... + 97228.
It is an arithmetic number, because the mean of its divisors is an integer number (12833037).
Almost surely, 2142802980 is an apocalyptic number.
142802980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
142802980 is an abundant number, since it is smaller than the sum of its proper divisors (165189908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142802980 is a wasteful number, since it uses less digits than its factorization.
142802980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 193023 (or 193021 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 34.
The square root of 142802980 is about 11950.0200836651. The cubic root of 142802980 is about 522.6918840727.
The spelling of 142802980 in words is "one hundred forty-two million, eight hundred two thousand, nine hundred eighty".
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