Base | Representation |
---|---|
bin | 11001101000011… |
… | …01101001110101 |
3 | 112222120211202200 |
4 | 30310031221311 |
5 | 420020422010 |
6 | 33200255113 |
7 | 5220405663 |
oct | 1464155165 |
9 | 488524680 |
10 | 215014005 |
11 | 100408228 |
12 | 60011499 |
13 | 3571312b |
14 | 207adc33 |
15 | 13d22cc0 |
hex | cd0da75 |
215014005 has 24 divisors (see below), whose sum is σ = 388896768. Its totient is φ = 109687776.
The previous prime is 215014001. The next prime is 215014021. The reversal of 215014005 is 500410512.
It is not a de Polignac number, because 215014005 - 22 = 215014001 is a prime.
It is a super-2 number, since 2×2150140052 = 92462044692280050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (215014001) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102837 + ... + 104906.
It is an arithmetic number, because the mean of its divisors is an integer number (16204032).
Almost surely, 2215014005 is an apocalyptic number.
It is an amenable number.
215014005 is a deficient number, since it is larger than the sum of its proper divisors (173882763).
215014005 is a wasteful number, since it uses less digits than its factorization.
215014005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 207777 (or 207774 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 18.
The square root of 215014005 is about 14663.3558573745. The cubic root of 215014005 is about 599.0856489782.
Adding to 215014005 its reverse (500410512), we get a palindrome (715424517).
The spelling of 215014005 in words is "two hundred fifteen million, fourteen thousand, five".
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