Base | Representation |
---|---|
bin | 1101001010101011… |
… | …01000010100110000 |
3 | 200020122100012211001 |
4 | 12211111220110300 |
5 | 103434113100003 |
6 | 3125234331344 |
7 | 340113321064 |
oct | 64525502460 |
9 | 20218305731 |
10 | 7068878128 |
11 | 2aa8219844 |
12 | 1453429b54 |
13 | 888670c30 |
14 | 4b0b69aa4 |
15 | 2b58c261d |
hex | 1a5568530 |
7068878128 has 80 divisors (see below), whose sum is σ = 15035975136. Its totient is φ = 3199518720.
The previous prime is 7068878107. The next prime is 7068878147. The reversal of 7068878128 is 8218788607.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5924700 + ... + 5925892.
Almost surely, 27068878128 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 7068878128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7517987568).
7068878128 is an abundant number, since it is smaller than the sum of its proper divisors (7967097008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7068878128 is a wasteful number, since it uses less digits than its factorization.
7068878128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1742 (or 1736 counting only the distinct ones).
The product of its (nonzero) digits is 2408448, while the sum is 55.
The square root of 7068878128 is about 84076.6205790885. The cubic root of 7068878128 is about 1919.1849593301.
The spelling of 7068878128 in words is "seven billion, sixty-eight million, eight hundred seventy-eight thousand, one hundred twenty-eight".
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