Base | Representation |
---|---|
bin | 100000100110111010… |
… | …0011101101000101000 |
3 | 20200202011112101122012 |
4 | 1001031310131220220 |
5 | 2121402404401430 |
6 | 52100304215052 |
7 | 5026200214211 |
oct | 1011564355050 |
9 | 220664471565 |
10 | 70025075240 |
11 | 2777436950a |
12 | 116a330a488 |
13 | 67ac6b6b83 |
14 | 35640a2408 |
15 | 1c4c915695 |
hex | 104dd1da28 |
70025075240 has 32 divisors (see below), whose sum is σ = 157588250760. Its totient is φ = 28004371200.
The previous prime is 70025075209. The next prime is 70025075249. The reversal of 70025075240 is 4257052007.
It can be written as a sum of positive squares in 4 ways, for example, as 60444189316 + 9580885924 = 245854^2 + 97882^2 .
It is a super-2 number, since 2×700250752402 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 70025075197 and 70025075206.
It is not an unprimeable number, because it can be changed into a prime (70025075249) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26510 + ... + 375170.
Almost surely, 270025075240 is an apocalyptic number.
It is an amenable number.
70025075240 is an abundant number, since it is smaller than the sum of its proper divisors (87563175520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70025075240 is a wasteful number, since it uses less digits than its factorization.
70025075240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 353693 (or 353689 counting only the distinct ones).
The product of its (nonzero) digits is 19600, while the sum is 32.
The spelling of 70025075240 in words is "seventy billion, twenty-five million, seventy-five thousand, two hundred forty".
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