Base | Representation |
---|---|
bin | 101000100011110001… |
… | …0011111010001001100 |
3 | 22022211010012120002102 |
4 | 1101013202133101030 |
5 | 2411334442203403 |
6 | 104002450014232 |
7 | 6202260060110 |
oct | 1210742372114 |
9 | 268733176072 |
10 | 87099569228 |
11 | 33a36488571 |
12 | 14a69577378 |
13 | 82a0c60459 |
14 | 4303a13740 |
15 | 23eb904b88 |
hex | 144789f44c |
87099569228 has 48 divisors (see below), whose sum is σ = 177949578240. Its totient is φ = 36525115776.
The previous prime is 87099569149. The next prime is 87099569311. The reversal of 87099569228 is 82296599078.
It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9453488 + ... + 9462696.
It is an arithmetic number, because the mean of its divisors is an integer number (3707282880).
Almost surely, 287099569228 is an apocalyptic number.
It is an amenable number.
87099569228 is an abundant number, since it is smaller than the sum of its proper divisors (90850009012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87099569228 is a wasteful number, since it uses less digits than its factorization.
87099569228 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16454 (or 16452 counting only the distinct ones).
The product of its (nonzero) digits is 39191040, while the sum is 65.
The spelling of 87099569228 in words is "eighty-seven billion, ninety-nine million, five hundred sixty-nine thousand, two hundred twenty-eight".
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