Base | Representation |
---|---|
bin | 101000111110010000… |
… | …0100000000101000000 |
3 | 22102010001101202011210 |
4 | 1101330200200011000 |
5 | 2420144442200304 |
6 | 104230553210120 |
7 | 6233300464050 |
oct | 1217440400500 |
9 | 272101352153 |
10 | 87988240704 |
11 | 34352082601 |
12 | 15077100940 |
13 | 83b30bb670 |
14 | 4389a61560 |
15 | 244e944c89 |
hex | 147c820140 |
87988240704 has 112 divisors (see below), whose sum is σ = 286525866368. Its totient is φ = 23205685248.
The previous prime is 87988240693. The next prime is 87988240729. The reversal of 87988240704 is 40704288978.
It is a tau number, because it is divible by the number of its divisors (112).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500507 + ... + 2535450.
It is an arithmetic number, because the mean of its divisors is an integer number (2558266664).
Almost surely, 287988240704 is an apocalyptic number.
87988240704 is a gapful number since it is divisible by the number (84) formed by its first and last digit.
It is an amenable number.
87988240704 is an abundant number, since it is smaller than the sum of its proper divisors (198537625664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87988240704 is a wasteful number, since it uses less digits than its factorization.
87988240704 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5035992 (or 5035982 counting only the distinct ones).
The product of its (nonzero) digits is 7225344, while the sum is 57.
The spelling of 87988240704 in words is "eighty-seven billion, nine hundred eighty-eight million, two hundred forty thousand, seven hundred four".
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