Base | Representation |
---|---|
bin | 110100010101110… |
… | …001111111001000 |
3 | 2021012100101001011 |
4 | 310111301333020 |
5 | 3244300000000 |
6 | 223045133304 |
7 | 30521640124 |
oct | 6425617710 |
9 | 2235311034 |
10 | 878125000 |
11 | 410751345 |
12 | 2060ba234 |
13 | 10cc079bc |
14 | 848a4584 |
15 | 5215a2ba |
hex | 34571fc8 |
878125000 has 72 divisors (see below), whose sum is σ = 2065428630. Its totient is φ = 350000000.
The previous prime is 878124971. The next prime is 878125009. The reversal of 878125000 is 521878.
It can be written as a sum of positive squares in 9 ways, for example, as 871784676 + 6340324 = 29526^2 + 2518^2 .
It is a super-2 number, since 2×8781250002 = 1542207031250000000, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (878125009) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3124860 + ... + 3125140.
Almost surely, 2878125000 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 878125000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032714315).
878125000 is an abundant number, since it is smaller than the sum of its proper divisors (1187303630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
878125000 is an frugal number, since it uses more digits than its factorization.
878125000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 327 (or 288 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 31.
The square root of 878125000 is about 29633.1739778242. The cubic root of 878125000 is about 957.6028880478.
Adding to 878125000 its reverse (521878), we get a palindrome (878646878).
It can be divided in two parts, 8 and 78125000, that multiplied together give a square (625000000 = 250002).
The spelling of 878125000 in words is "eight hundred seventy-eight million, one hundred twenty-five thousand".
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