Base | Representation |
---|---|
bin | 10001000010111… |
… | …00101011011110 |
3 | 100222001102211221 |
4 | 20201130223132 |
5 | 243101022300 |
6 | 22104403554 |
7 | 3354234442 |
oct | 1041345336 |
9 | 328042757 |
10 | 142985950 |
11 | 73791508 |
12 | 3ba765ba |
13 | 23814493 |
14 | 14dc0822 |
15 | c84631a |
hex | 885cade |
142985950 has 48 divisors (see below), whose sum is σ = 284088960. Its totient is φ = 53424000.
The previous prime is 142985933. The next prime is 142985957. The reversal of 142985950 is 59589241.
142985950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 142985897 and 142985906.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142985957) 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, 43360 + ... + 46540.
It is an arithmetic number, because the mean of its divisors is an integer number (5918520).
Almost surely, 2142985950 is an apocalyptic number.
142985950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
142985950 is a deficient number, since it is larger than the sum of its proper divisors (141103010).
142985950 is a wasteful number, since it uses less digits than its factorization.
142985950 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3253 (or 3248 counting only the distinct ones).
The product of its (nonzero) digits is 129600, while the sum is 43.
The square root of 142985950 is about 11957.6732686589. The cubic root of 142985950 is about 522.9150262819.
The spelling of 142985950 in words is "one hundred forty-two million, nine hundred eighty-five thousand, nine hundred fifty".
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