Base | Representation |
---|---|
bin | 10001000000101… |
… | …11110101001010 |
3 | 100221112010000100 |
4 | 20200113311022 |
5 | 243013011241 |
6 | 22054350230 |
7 | 3351651330 |
oct | 1040276512 |
9 | 327463010 |
10 | 142703946 |
11 | 73609650 |
12 | 3b95b376 |
13 | 23746008 |
14 | 14d49b50 |
15 | c7dc9b6 |
hex | 8817d4a |
142703946 has 96 divisors (see below), whose sum is σ = 405849600. Its totient is φ = 35108640.
The previous prime is 142703923. The next prime is 142703947. The reversal of 142703946 is 649307241.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 142703946.
It is not an unprimeable number, because it can be changed into a prime (142703947) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23625 + ... + 29043.
It is an arithmetic number, because the mean of its divisors is an integer number (4227600).
Almost surely, 2142703946 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142703946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202924800).
142703946 is an abundant number, since it is smaller than the sum of its proper divisors (263145654).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142703946 is a wasteful number, since it uses less digits than its factorization.
142703946 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5464 (or 5461 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The square root of 142703946 is about 11945.8756899609. The cubic root of 142703946 is about 522.5710270270.
The spelling of 142703946 in words is "one hundred forty-two million, seven hundred three thousand, nine hundred forty-six".
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