Base | Representation |
---|---|
bin | 10001001000000… |
… | …100111011101110 |
3 | 202000122212200222 |
4 | 101020010323232 |
5 | 1042024030110 |
6 | 44302251342 |
7 | 10056156611 |
oct | 2110047356 |
9 | 660585628 |
10 | 287330030 |
11 | 138210339 |
12 | 80286b52 |
13 | 476b2b90 |
14 | 2a236178 |
15 | 1a359c55 |
hex | 11204eee |
287330030 has 32 divisors (see below), whose sum is σ = 581200704. Its totient is φ = 101477376.
The previous prime is 287330023. The next prime is 287330063. The reversal of 287330030 is 30033782.
It is a super-2 number, since 2×2873300302 = 165117092279601800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (26).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45059 + ... + 51038.
It is an arithmetic number, because the mean of its divisors is an integer number (18162522).
Almost surely, 2287330030 is an apocalyptic number.
287330030 is an abundant number, since it is smaller than the sum of its proper divisors (293870674).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
287330030 is a wasteful number, since it uses less digits than its factorization.
287330030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 96140.
The product of its (nonzero) digits is 3024, while the sum is 26.
The square root of 287330030 is about 16950.8120749420. The cubic root of 287330030 is about 659.8729706549.
The spelling of 287330030 in words is "two hundred eighty-seven million, three hundred thirty thousand, thirty".
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