Base | Representation |
---|---|
bin | 111100011101111… |
… | …0011000100010011 |
3 | 12020101210220121201 |
4 | 1320323303010103 |
5 | 13123402112322 |
6 | 533155132031 |
7 | 101164501411 |
oct | 17073630423 |
9 | 5211726551 |
10 | 2028941587 |
11 | 951314932 |
12 | 4875a4017 |
13 | 26446b66a |
14 | 1536702b1 |
15 | bd1ccd27 |
hex | 78ef3113 |
2028941587 has 8 divisors (see below), whose sum is σ = 2118164400. Its totient is φ = 1941002784.
The previous prime is 2028941569. The next prime is 2028941609. The reversal of 2028941587 is 7851498202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2028941587 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2028941567) by changing a digit.
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, 317773 + ... + 324094.
It is an arithmetic number, because the mean of its divisors is an integer number (264770550).
Almost surely, 22028941587 is an apocalyptic number.
2028941587 is a deficient number, since it is larger than the sum of its proper divisors (89222813).
2028941587 is a wasteful number, since it uses less digits than its factorization.
2028941587 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 642005.
The product of its (nonzero) digits is 322560, while the sum is 46.
The square root of 2028941587 is about 45043.7741202933. The cubic root of 2028941587 is about 1265.9693210581.
The spelling of 2028941587 in words is "two billion, twenty-eight million, nine hundred forty-one thousand, five hundred eighty-seven".
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