Base | Representation |
---|---|
bin | 1010001011010… |
… | …1101010110111 |
3 | 2222022201202220 |
4 | 2202311222313 |
5 | 41411442114 |
6 | 4122533423 |
7 | 1025556234 |
oct | 242655267 |
9 | 88281686 |
10 | 42687159 |
11 | 22106549 |
12 | 12367273 |
13 | 8ac7998 |
14 | 595278b |
15 | 3b330a9 |
hex | 28b5ab7 |
42687159 has 32 divisors (see below), whose sum is σ = 61560000. Its totient is φ = 26256384.
The previous prime is 42687157. The next prime is 42687173. The reversal of 42687159 is 95178624.
It is not a de Polignac number, because 42687159 - 21 = 42687157 is a prime.
It is a super-3 number, since 3×426871593 (a number of 24 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 42687159.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42687157) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286417 + ... + 286565.
It is an arithmetic number, because the mean of its divisors is an integer number (1923750).
Almost surely, 242687159 is an apocalyptic number.
42687159 is a deficient number, since it is larger than the sum of its proper divisors (18872841).
42687159 is a wasteful number, since it uses less digits than its factorization.
42687159 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 307.
The product of its digits is 120960, while the sum is 42.
The square root of 42687159 is about 6533.5410766291. The cubic root of 42687159 is about 349.4881197597.
The spelling of 42687159 in words is "forty-two million, six hundred eighty-seven thousand, one hundred fifty-nine".
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