Base | Representation |
---|---|
bin | 100110000011… |
… | …0100110110111 |
3 | 1101112120021011 |
4 | 1030012212313 |
5 | 20101400012 |
6 | 1551333051 |
7 | 331400200 |
oct | 114064667 |
9 | 41476234 |
10 | 19950007 |
11 | 10296810 |
12 | 6821187 |
13 | 419674c |
14 | 29145a7 |
15 | 1b411a7 |
hex | 13069b7 |
19950007 has 12 divisors (see below), whose sum is σ = 25317576. Its totient is φ = 15545040.
The previous prime is 19949977. The next prime is 19950013. The reversal of 19950007 is 70005991.
It is a de Polignac number, because none of the positive numbers 2k-19950007 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19950017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17968 + ... + 19045.
It is an arithmetic number, because the mean of its divisors is an integer number (2109798).
Almost surely, 219950007 is an apocalyptic number.
19950007 is a deficient number, since it is larger than the sum of its proper divisors (5367569).
19950007 is a wasteful number, since it uses less digits than its factorization.
19950007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37038 (or 37031 counting only the distinct ones).
The product of its (nonzero) digits is 2835, while the sum is 31.
The square root of 19950007 is about 4466.5430704293. The cubic root of 19950007 is about 271.2154031491.
Adding to 19950007 its reverse (70005991), we get a palindrome (89955998).
The spelling of 19950007 in words is "nineteen million, nine hundred fifty thousand, seven".
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