Base | Representation |
---|---|
bin | 1010011111001… |
… | …11011111100011 |
3 | 20010112211212122 |
4 | 11033213133203 |
5 | 140010330003 |
6 | 12421414455 |
7 | 2115550316 |
oct | 517473743 |
9 | 203484778 |
10 | 87980003 |
11 | 45731751 |
12 | 2556a42b |
13 | 152c5697 |
14 | b98297d |
15 | 7acd238 |
hex | 53e77e3 |
87980003 has 6 divisors (see below), whose sum is σ = 88467876. Its totient is φ = 87494792.
The previous prime is 87979987. The next prime is 87980023. The reversal of 87980003 is 30008978.
It is not a de Polignac number, because 87980003 - 24 = 87979987 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87980023) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37676 + ... + 39942.
It is an arithmetic number, because the mean of its divisors is an integer number (14744646).
Almost surely, 287980003 is an apocalyptic number.
87980003 is a deficient number, since it is larger than the sum of its proper divisors (487873).
87980003 is an equidigital number, since it uses as much as digits as its factorization.
87980003 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2661 (or 2464 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 87980003 is about 9379.7656154085. The cubic root of 87980003 is about 444.7623239480.
The spelling of 87980003 in words is "eighty-seven million, nine hundred eighty thousand, three".
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