Base | Representation |
---|---|
bin | 111010101101110… |
… | …1110001011001001 |
3 | 12002022021121002010 |
4 | 1311123232023021 |
5 | 13013332420124 |
6 | 523300130133 |
7 | 66552302040 |
oct | 16533561311 |
9 | 5068247063 |
10 | 1970201289 |
11 | 921144431 |
12 | 46b996949 |
13 | 255242ba4 |
14 | 14993d557 |
15 | b7e78529 |
hex | 756ee2c9 |
1970201289 has 8 divisors (see below), whose sum is σ = 3002211520. Its totient is φ = 1125829296.
The previous prime is 1970201287. The next prime is 1970201309. The reversal of 1970201289 is 9821020791.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1970201289 - 21 = 1970201287 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1970201287) 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, 46909534 + ... + 46909575.
It is an arithmetic number, because the mean of its divisors is an integer number (375276440).
Almost surely, 21970201289 is an apocalyptic number.
It is an amenable number.
1970201289 is a deficient number, since it is larger than the sum of its proper divisors (1032010231).
1970201289 is an equidigital number, since it uses as much as digits as its factorization.
1970201289 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93819119.
The product of its (nonzero) digits is 18144, while the sum is 39.
The square root of 1970201289 is about 44386.9495347450. The cubic root of 1970201289 is about 1253.6323761042.
The spelling of 1970201289 in words is "one billion, nine hundred seventy million, two hundred one thousand, two hundred eighty-nine".
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