Base | Representation |
---|---|
bin | 111010000111010… |
… | …1010001110000001 |
3 | 12000220021021010021 |
4 | 1310032222032001 |
5 | 12443200000001 |
6 | 521255133441 |
7 | 66215504125 |
oct | 16416521601 |
9 | 5026237107 |
10 | 1950000001 |
11 | 9107a6954 |
12 | 465074281 |
13 | 250cbbc71 |
14 | 146da1585 |
15 | b62d7ba1 |
hex | 743aa381 |
1950000001 has 8 divisors (see below), whose sum is σ = 2054300000. Its totient is φ = 1845866880.
The previous prime is 1949999999. The next prime is 1950000023. The reversal of 1950000001 is 1000000591.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1950000001 - 21 = 1949999999 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1950000001.
It is not an unprimeable number, because it can be changed into a prime (1950000901) 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, 17355 + ... + 64816.
It is an arithmetic number, because the mean of its divisors is an integer number (256787500).
Almost surely, 21950000001 is an apocalyptic number.
It is an amenable number.
1950000001 is a deficient number, since it is larger than the sum of its proper divisors (104299999).
1950000001 is a wasteful number, since it uses less digits than its factorization.
1950000001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83439.
The product of its (nonzero) digits is 45, while the sum is 16.
The square root of 1950000001 is about 44158.8043429620. The cubic root of 1950000001 is about 1249.3329776750.
Adding to 1950000001 its reverse (1000000591), we get a palindrome (2950000592).
The spelling of 1950000001 in words is "one billion, nine hundred fifty million, one", and thus it is an aban number.
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