Base | Representation |
---|---|
bin | 111001110001… |
… | …0001011111110 |
3 | 2002222201101120 |
4 | 1303202023332 |
5 | 30223132330 |
6 | 3001051410 |
7 | 515301045 |
oct | 163421376 |
9 | 62881346 |
10 | 30286590 |
11 | 16106844 |
12 | a186b66 |
13 | 6375579 |
14 | 404555c |
15 | 29d3c10 |
hex | 1ce22fe |
30286590 has 32 divisors (see below), whose sum is σ = 73228320. Its totient is φ = 8016384.
The previous prime is 30286573. The next prime is 30286603. The reversal of 30286590 is 9568203.
It is a happy number.
It is a congruent number.
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, 426 + ... + 7794.
It is an arithmetic number, because the mean of its divisors is an integer number (2288385).
Almost surely, 230286590 is an apocalyptic number.
30286590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30286590 is an abundant number, since it is smaller than the sum of its proper divisors (42941730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30286590 is a wasteful number, since it uses less digits than its factorization.
30286590 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7516.
The product of its (nonzero) digits is 12960, while the sum is 33.
The square root of 30286590 is about 5503.3253583629. The cubic root of 30286590 is about 311.7095628884.
It can be divided in two parts, 30286 and 590, that added together give a triangular number (30876 = T248).
The spelling of 30286590 in words is "thirty million, two hundred eighty-six thousand, five hundred ninety".
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