Base | Representation |
---|---|
bin | 101000111010101101… |
… | …1110000000011010110 |
3 | 22101210210001212212100 |
4 | 1101311123300003112 |
5 | 2414424101224102 |
6 | 104211113302530 |
7 | 6230326615233 |
oct | 1216533600326 |
9 | 271723055770 |
10 | 87869554902 |
11 | 342a1089168 |
12 | 15043404a46 |
13 | 839463498c |
14 | 4377da878a |
15 | 24442eda1c |
hex | 14756f00d6 |
87869554902 has 48 divisors (see below), whose sum is σ = 190891846080. Its totient is φ = 29211840000.
The previous prime is 87869554897. The next prime is 87869554919. The reversal of 87869554902 is 20945596878.
87869554902 is a `hidden beast` number, since 8 + 7 + 86 + 9 + 5 + 549 + 0 + 2 = 666.
It is a self number, because there is not a number n which added to its sum of digits gives 87869554902.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11202502 + ... + 11210342.
It is an arithmetic number, because the mean of its divisors is an integer number (3976913460).
Almost surely, 287869554902 is an apocalyptic number.
87869554902 is an abundant number, since it is smaller than the sum of its proper divisors (103022291178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87869554902 is a wasteful number, since it uses less digits than its factorization.
87869554902 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9429 (or 9426 counting only the distinct ones).
The product of its (nonzero) digits is 43545600, while the sum is 63.
The spelling of 87869554902 in words is "eighty-seven billion, eight hundred sixty-nine million, five hundred fifty-four thousand, nine hundred two".
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