Base | Representation |
---|---|
bin | 101000100110111010… |
… | …0010111110010010110 |
3 | 22100002110102221211021 |
4 | 1101031310113302112 |
5 | 2412043424423340 |
6 | 104021132031354 |
7 | 6205006410433 |
oct | 1211564276226 |
9 | 270073387737 |
10 | 87204920470 |
11 | 33a8a9a4508 |
12 | 14a9890255a |
13 | 82b9a28875 |
14 | 43139d8b8a |
15 | 2405cb4e4a |
hex | 144dd17c96 |
87204920470 has 32 divisors (see below), whose sum is σ = 157890459168. Its totient is φ = 34677769728.
The previous prime is 87204920437. The next prime is 87204920471. The reversal of 87204920470 is 7402940278.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87204920471) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132104 + ... + 1206676.
It is an arithmetic number, because the mean of its divisors is an integer number (4934076849).
Almost surely, 287204920470 is an apocalyptic number.
87204920470 is a deficient number, since it is larger than the sum of its proper divisors (70685538698).
87204920470 is a wasteful number, since it uses less digits than its factorization.
87204920470 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75264.
The product of its (nonzero) digits is 225792, while the sum is 43.
The spelling of 87204920470 in words is "eighty-seven billion, two hundred four million, nine hundred twenty thousand, four hundred seventy".
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