Base | Representation |
---|---|
bin | 10011110100111100011101… |
… | …010010111000100000011110 |
3 | 102102202100120102122001210222 |
4 | 103310330131102320200132 |
5 | 42412201040344444443 |
6 | 505243403424201342 |
7 | 24240036223324142 |
oct | 2364743522704036 |
9 | 372670512561728 |
10 | 87201212499998 |
11 | 2586a9101418a3 |
12 | 9944219769252 |
13 | 3987067a5991c |
14 | 17767bdd33222 |
15 | a13484c66468 |
hex | 4f4f1d4b881e |
87201212499998 has 8 divisors (see below), whose sum is σ = 131479548381408. Its totient is φ = 43374696372864.
The previous prime is 87201212499971. The next prime is 87201212500009. The reversal of 87201212499998 is 89999421210278.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×872012124999982 (a number of 29 digits) contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112954938086 + ... + 112954938857.
It is an arithmetic number, because the mean of its divisors is an integer number (16434943547676).
Almost surely, 287201212499998 is an apocalyptic number.
87201212499998 is a deficient number, since it is larger than the sum of its proper divisors (44278335881410).
87201212499998 is a wasteful number, since it uses less digits than its factorization.
87201212499998 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 225909877138.
The product of its (nonzero) digits is 94058496, while the sum is 71.
The spelling of 87201212499998 in words is "eighty-seven trillion, two hundred one billion, two hundred twelve million, four hundred ninety-nine thousand, nine hundred ninety-eight".
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