Base | Representation |
---|---|
bin | 10011110010011101000001… |
… | …000010000100101010100111 |
3 | 102102010222200021021202001120 |
4 | 103302131001002010222213 |
5 | 42401344431411200122 |
6 | 505033011453025023 |
7 | 24221465601661104 |
oct | 2362350102045247 |
9 | 372128607252046 |
10 | 87030013381287 |
11 | 25804248760029 |
12 | 9916bbb485173 |
13 | 3973b83559552 |
14 | 176c3bcd19aab |
15 | a0dcb500675c |
hex | 4f2741084aa7 |
87030013381287 has 16 divisors (see below), whose sum is σ = 116209536196992. Its totient is φ = 57935252040480.
The previous prime is 87030013381163. The next prime is 87030013381379. The reversal of 87030013381287 is 78218331003078.
It is a de Polignac number, because none of the positive numbers 2k-87030013381287 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87030013382287) 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, 178276788 + ... + 178764294.
It is an arithmetic number, because the mean of its divisors is an integer number (7263096012312).
Almost surely, 287030013381287 is an apocalyptic number.
87030013381287 is a deficient number, since it is larger than the sum of its proper divisors (29179522815705).
87030013381287 is a wasteful number, since it uses less digits than its factorization.
87030013381287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 574318.
The product of its (nonzero) digits is 1354752, while the sum is 51.
The spelling of 87030013381287 in words is "eighty-seven trillion, thirty billion, thirteen million, three hundred eighty-one thousand, two hundred eighty-seven".
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