Base | Representation |
---|---|
bin | 101000111011010000… |
… | …0001100010011000001 |
3 | 22101212000211101221201 |
4 | 1101312200030103001 |
5 | 2414443144341020 |
6 | 104212554021201 |
7 | 6230635251613 |
oct | 1216640142301 |
9 | 271760741851 |
10 | 87887496385 |
11 | 34300222937 |
12 | 15049417801 |
13 | 8398277140 |
14 | 437a518db3 |
15 | 2445b94a0a |
hex | 147680c4c1 |
87887496385 has 16 divisors (see below), whose sum is σ = 118515849984. Its totient is φ = 62079728832.
The previous prime is 87887496379. The next prime is 87887496419. The reversal of 87887496385 is 58369478878.
It is a cyclic number.
It is not a de Polignac number, because 87887496385 - 23 = 87887496377 is a prime.
It is a Duffinian 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, 29392317 + ... + 29395306.
It is an arithmetic number, because the mean of its divisors is an integer number (7407240624).
Almost surely, 287887496385 is an apocalyptic number.
It is an amenable number.
87887496385 is a deficient number, since it is larger than the sum of its proper divisors (30628353599).
87887496385 is a wasteful number, since it uses less digits than its factorization.
87887496385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58787664.
The product of its digits is 650280960, while the sum is 73.
The spelling of 87887496385 in words is "eighty-seven billion, eight hundred eighty-seven million, four hundred ninety-six thousand, three hundred eighty-five".
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