Base | Representation |
---|---|
bin | 10001000010010… |
… | …10110010101000 |
3 | 100221220201100020 |
4 | 20201022302220 |
5 | 243041201210 |
6 | 22103040440 |
7 | 3353511021 |
oct | 1041126250 |
9 | 327821306 |
10 | 142912680 |
11 | 73741459 |
12 | 3ba40120 |
13 | 237ba021 |
14 | 14da1c48 |
15 | c82e770 |
hex | 884aca8 |
142912680 has 96 divisors (see below), whose sum is σ = 452628000. Its totient is φ = 36093312.
The previous prime is 142912673. The next prime is 142912681. The reversal of 142912680 is 86219241.
It is not an unprimeable number, because it can be changed into a prime (142912681) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41671 + ... + 44969.
It is an arithmetic number, because the mean of its divisors is an integer number (4714875).
Almost surely, 2142912680 is an apocalyptic number.
142912680 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 142912680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226314000).
142912680 is an abundant number, since it is smaller than the sum of its proper divisors (309715320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142912680 is a wasteful number, since it uses less digits than its factorization.
142912680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3351 (or 3328 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 142912680 is about 11954.6091529585. The cubic root of 142912680 is about 522.8256922594.
The spelling of 142912680 in words is "one hundred forty-two million, nine hundred twelve thousand, six hundred eighty".
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