Base | Representation |
---|---|
bin | 1010011110000… |
… | …11000011101100 |
3 | 20010021021011021 |
4 | 11033003003230 |
5 | 134441041024 |
6 | 12414303524 |
7 | 2114356240 |
oct | 517030354 |
9 | 203237137 |
10 | 87830764 |
11 | 4563a60a |
12 | 254b7ba4 |
13 | 15272788 |
14 | b944420 |
15 | 7a9dde4 |
hex | 53c30ec |
87830764 has 24 divisors (see below), whose sum is σ = 176933120. Its totient is φ = 37369296.
The previous prime is 87830761. The next prime is 87830779. The reversal of 87830764 is 46703878.
It is a nialpdrome in base 14.
It is a self number, because there is not a number n which added to its sum of digits gives 87830764.
It is not an unprimeable number, because it can be changed into a prime (87830761) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7392 + ... + 15175.
Almost surely, 287830764 is an apocalyptic number.
It is an amenable number.
87830764 is an abundant number, since it is smaller than the sum of its proper divisors (89102356).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87830764 is a wasteful number, since it uses less digits than its factorization.
87830764 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22717 (or 22715 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 43.
The square root of 87830764 is about 9371.8068695423. The cubic root of 87830764 is about 444.5107006686.
The spelling of 87830764 in words is "eighty-seven million, eight hundred thirty thousand, seven hundred sixty-four".
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