Base | Representation |
---|---|
bin | 10001000010010… |
… | …110101111110010 |
3 | 201220211200020010 |
4 | 101002112233302 |
5 | 1041133031010 |
6 | 44210155350 |
7 | 10040341665 |
oct | 2102265762 |
9 | 656750203 |
10 | 285830130 |
11 | 137386453 |
12 | 7b882b56 |
13 | 472a9271 |
14 | 29d656dc |
15 | 1a160620 |
hex | 11096bf2 |
285830130 has 32 divisors (see below), whose sum is σ = 686501568. Its totient is φ = 76164800.
The previous prime is 285830099. The next prime is 285830141. The reversal of 285830130 is 31038582.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51700 + ... + 56960.
It is an arithmetic number, because the mean of its divisors is an integer number (21453174).
Almost surely, 2285830130 is an apocalyptic number.
285830130 is an abundant number, since it is smaller than the sum of its proper divisors (400671438).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
285830130 is a wasteful number, since it uses less digits than its factorization.
285830130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7082.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 285830130 is about 16906.5114674790. The cubic root of 285830130 is about 658.7227594303.
The spelling of 285830130 in words is "two hundred eighty-five million, eight hundred thirty thousand, one hundred thirty".
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