Base | Representation |
---|---|
bin | 100000101001010011… |
… | …1101110101101010100 |
3 | 20200221210002122220122 |
4 | 1001102213232231110 |
5 | 2122034014422010 |
6 | 52112302451112 |
7 | 5031165652352 |
oct | 1012247565524 |
9 | 220853078818 |
10 | 70105623380 |
11 | 27805884521 |
12 | 11706293a98 |
13 | 67c32a98b0 |
14 | 3570a6c7d2 |
15 | 1c54a26855 |
hex | 10529eeb54 |
70105623380 has 48 divisors (see below), whose sum is σ = 158573785104. Its totient is φ = 25880709120.
The previous prime is 70105623377. The next prime is 70105623389. The reversal of 70105623380 is 8332650107.
It can be written as a sum of positive squares in 8 ways, for example, as 20961827524 + 49143795856 = 144782^2 + 221684^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 70105623380.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70105623389) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1756850 + ... + 1796310.
It is an arithmetic number, because the mean of its divisors is an integer number (3303620523).
Almost surely, 270105623380 is an apocalyptic number.
It is an amenable number.
70105623380 is an abundant number, since it is smaller than the sum of its proper divisors (88468161724).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70105623380 is a wasteful number, since it uses less digits than its factorization.
70105623380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46316 (or 46314 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 35.
The spelling of 70105623380 in words is "seventy billion, one hundred five million, six hundred twenty-three thousand, three hundred eighty".
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