Base | Representation |
---|---|
bin | 1000011001111… |
… | …01111000110000 |
3 | 11220200011220101 |
4 | 10030331320300 |
5 | 121022224310 |
6 | 10555122144 |
7 | 1514210626 |
oct | 414757060 |
9 | 156604811 |
10 | 70508080 |
11 | 36888845 |
12 | 1b743354 |
13 | 117b8b76 |
14 | 9515516 |
15 | 62cb43a |
hex | 433de30 |
70508080 has 20 divisors (see below), whose sum is σ = 163931472. Its totient is φ = 28203200.
The previous prime is 70508071. The next prime is 70508083. The reversal of 70508080 is 8080507.
It is a tau number, because it is divible by the number of its divisors (20).
It is not an unprimeable number, because it can be changed into a prime (70508083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440596 + ... + 440755.
Almost surely, 270508080 is an apocalyptic number.
It is an amenable number.
70508080 is an abundant number, since it is smaller than the sum of its proper divisors (93423392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70508080 is a wasteful number, since it uses less digits than its factorization.
70508080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 881364 (or 881358 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 28.
The square root of 70508080 is about 8396.9089550858. The cubic root of 70508080 is about 413.1232427527.
Adding to 70508080 its reverse (8080507), we get a palindrome (78588587).
The spelling of 70508080 in words is "seventy million, five hundred eight thousand, eighty".
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