Base | Representation |
---|---|
bin | 1010001111111… |
… | …1010111100110 |
3 | 2222220001212022 |
4 | 2203333113212 |
5 | 42001122110 |
6 | 4133223142 |
7 | 1031254310 |
oct | 243772746 |
9 | 88801768 |
10 | 42989030 |
11 | 222a2327 |
12 | 12491ab2 |
13 | 8ba21c6 |
14 | 59d07b0 |
15 | 3b92755 |
hex | 28ff5e6 |
42989030 has 16 divisors (see below), whose sum is σ = 88434720. Its totient is φ = 14739072.
The previous prime is 42989029. The next prime is 42989041. The reversal of 42989030 is 3098924.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306995 + ... + 307134.
It is an arithmetic number, because the mean of its divisors is an integer number (5527170).
Almost surely, 242989030 is an apocalyptic number.
42989030 is an abundant number, since it is smaller than the sum of its proper divisors (45445690).
42989030 is a wasteful number, since it uses less digits than its factorization.
42989030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 614143.
The product of its (nonzero) digits is 15552, while the sum is 35.
The square root of 42989030 is about 6556.6020162886. The cubic root of 42989030 is about 350.3100110422.
The spelling of 42989030 in words is "forty-two million, nine hundred eighty-nine thousand, thirty".
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