Base | Representation |
---|---|
bin | 1010011111001… |
… | …10011100000011 |
3 | 20010112121221122 |
4 | 11033212130003 |
5 | 140010210213 |
6 | 12421342455 |
7 | 2115531605 |
oct | 517463403 |
9 | 203477848 |
10 | 87975683 |
11 | 45729484 |
12 | 25567a2b |
13 | 152c3723 |
14 | b981175 |
15 | 7acbd08 |
hex | 53e6703 |
87975683 has 4 divisors (see below), whose sum is σ = 88130328. Its totient is φ = 87821040.
The previous prime is 87975659. The next prime is 87975691. The reversal of 87975683 is 38657978.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 87975683 - 26 = 87975619 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87975653) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76466 + ... + 77607.
It is an arithmetic number, because the mean of its divisors is an integer number (22032582).
Almost surely, 287975683 is an apocalyptic number.
87975683 is a deficient number, since it is larger than the sum of its proper divisors (154645).
87975683 is a wasteful number, since it uses less digits than its factorization.
87975683 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 154644.
The product of its digits is 2540160, while the sum is 53.
The square root of 87975683 is about 9379.5353296419. The cubic root of 87975683 is about 444.7550442457.
The spelling of 87975683 in words is "eighty-seven million, nine hundred seventy-five thousand, six hundred eighty-three".
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