Base | Representation |
---|---|
bin | 10001000111110… |
… | …000111011001010 |
3 | 202000111201021120 |
4 | 101013300323022 |
5 | 1042013414244 |
6 | 44300420110 |
7 | 10055365641 |
oct | 2107607312 |
9 | 660451246 |
10 | 287248074 |
11 | 138164803 |
12 | 80247636 |
13 | 47684799 |
14 | 2a214358 |
15 | 1a340819 |
hex | 111f0eca |
287248074 has 32 divisors (see below), whose sum is σ = 596661120. Its totient is φ = 92081472.
The previous prime is 287248063. The next prime is 287248079. The reversal of 287248074 is 470842782.
It is a super-2 number, since 2×2872480742 = 165022912033418952, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (287248079) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42624 + ... + 48900.
It is an arithmetic number, because the mean of its divisors is an integer number (18645660).
Almost surely, 2287248074 is an apocalyptic number.
287248074 is an abundant number, since it is smaller than the sum of its proper divisors (309413046).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
287248074 is a wasteful number, since it uses less digits than its factorization.
287248074 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6574.
The product of its (nonzero) digits is 200704, while the sum is 42.
The square root of 287248074 is about 16948.3944372321. The cubic root of 287248074 is about 659.8102255115.
The spelling of 287248074 in words is "two hundred eighty-seven million, two hundred forty-eight thousand, seventy-four".
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