Base | Representation |
---|---|
bin | 1000011101100… |
… | …01000111101011 |
3 | 11221120011100200 |
4 | 10032301013223 |
5 | 121132330300 |
6 | 11013203243 |
7 | 1521214665 |
oct | 416610753 |
9 | 157504320 |
10 | 70980075 |
11 | 37080421 |
12 | 1b930523 |
13 | 1192295a |
14 | 95d9535 |
15 | 6371200 |
hex | 43b11eb |
70980075 has 18 divisors (see below), whose sum is σ = 127133604. Its totient is φ = 37855920.
The previous prime is 70980071. The next prime is 70980089. The reversal of 70980075 is 57008907.
It is not a de Polignac number, because 70980075 - 22 = 70980071 is a prime.
It is not an unprimeable number, because it can be changed into a prime (70980071) 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, 157509 + ... + 157958.
It is an arithmetic number, because the mean of its divisors is an integer number (7062978).
Almost surely, 270980075 is an apocalyptic number.
70980075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
70980075 is a deficient number, since it is larger than the sum of its proper divisors (56153529).
70980075 is a wasteful number, since it uses less digits than its factorization.
70980075 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315483 (or 315475 counting only the distinct ones).
The product of its (nonzero) digits is 17640, while the sum is 36.
The square root of 70980075 is about 8424.9673589872. The cubic root of 70980075 is about 414.0430362039.
The spelling of 70980075 in words is "seventy million, nine hundred eighty thousand, seventy-five".
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