Base | Representation |
---|---|
bin | 110100000000111… |
… | …000111000010000 |
3 | 2020211001010022000 |
4 | 310000320320100 |
5 | 3241344220313 |
6 | 222331514000 |
7 | 30424246605 |
oct | 6400707020 |
9 | 2224033260 |
10 | 872648208 |
11 | 408650573 |
12 | 2042b8900 |
13 | 10ba3abb3 |
14 | 83c7a6ac |
15 | 51927673 |
hex | 34038e10 |
872648208 has 40 divisors (see below), whose sum is σ = 2504824800. Its totient is φ = 290882592.
The previous prime is 872648191. The next prime is 872648209. The reversal of 872648208 is 802846278.
It is a happy number.
It is a super-2 number, since 2×8726482082 = 1523029789851222528, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (872648209) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009578 + ... + 1010441.
It is an arithmetic number, because the mean of its divisors is an integer number (62620620).
Almost surely, 2872648208 is an apocalyptic number.
It is an amenable number.
872648208 is an abundant number, since it is smaller than the sum of its proper divisors (1632176592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
872648208 is a wasteful number, since it uses less digits than its factorization.
872648208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2020036 (or 2020024 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 45.
The square root of 872648208 is about 29540.6196278954. The cubic root of 872648208 is about 955.6079051263.
The spelling of 872648208 in words is "eight hundred seventy-two million, six hundred forty-eight thousand, two hundred eight".
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