Base | Representation |
---|---|
bin | 100011010001010100… |
… | …0000101011011001000 |
3 | 21020111122120000011011 |
4 | 1012202220011123020 |
5 | 2220110133023000 |
6 | 54443520213304 |
7 | 5320656460432 |
oct | 1064250053310 |
9 | 236448500134 |
10 | 75742861000 |
11 | 2a138963594 |
12 | 1281a16a234 |
13 | 71b1171461 |
14 | 394760b652 |
15 | 1e848a42ba |
hex | 11a2a056c8 |
75742861000 has 32 divisors (see below), whose sum is σ = 177238297080. Its totient is φ = 30297144000.
The previous prime is 75742860983. The next prime is 75742861009. The reversal of 75742861000 is 16824757.
It can be written as a sum of positive squares in 4 ways, for example, as 6018346084 + 69724514916 = 77578^2 + 264054^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (75742861009) 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, 37870431 + ... + 37872430.
Almost surely, 275742861000 is an apocalyptic number.
It is an amenable number.
75742861000 is an abundant number, since it is smaller than the sum of its proper divisors (101495436080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75742861000 is a wasteful number, since it uses less digits than its factorization.
75742861000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75742882 (or 75742868 counting only the distinct ones).
The product of its (nonzero) digits is 94080, while the sum is 40.
The spelling of 75742861000 in words is "seventy-five billion, seven hundred forty-two million, eight hundred sixty-one thousand".
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