Base | Representation |
---|---|
bin | 10000010000001000… |
… | …01010111110101110 |
3 | 211112002002102012110 |
4 | 20020010022332232 |
5 | 120332130331440 |
6 | 4001444144450 |
7 | 426135236415 |
oct | 101004127656 |
9 | 24462072173 |
10 | 8725245870 |
11 | 37781a0400 |
12 | 1836098126 |
13 | a908815a3 |
14 | 5cab3447c |
15 | 361008080 |
hex | 20810afae |
8725245870 has 96 divisors (see below), whose sum is σ = 23071112064. Its totient is φ = 2110271680.
The previous prime is 8725245829. The next prime is 8725245871. The reversal of 8725245870 is 785425278.
It is a super-2 number, since 2×87252458702 (a number of 21 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8725245871) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1692637 + ... + 1697783.
It is an arithmetic number, because the mean of its divisors is an integer number (240324084).
Almost surely, 28725245870 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8725245870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11535556032).
8725245870 is an abundant number, since it is smaller than the sum of its proper divisors (14345866194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8725245870 is a wasteful number, since it uses less digits than its factorization.
8725245870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5646 (or 5635 counting only the distinct ones).
The product of its (nonzero) digits is 1254400, while the sum is 48.
The square root of 8725245870 is about 93409.0245640109. The cubic root of 8725245870 is about 2058.6975986890.
The spelling of 8725245870 in words is "eight billion, seven hundred twenty-five million, two hundred forty-five thousand, eight hundred seventy".
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