Base | Representation |
---|---|
bin | 11001101001001… |
… | …10000100100011 |
3 | 112222202220221220 |
4 | 30310212010203 |
5 | 420032122034 |
6 | 33202350123 |
7 | 5221303401 |
oct | 1464460443 |
9 | 488686856 |
10 | 215114019 |
11 | 10047638a |
12 | 6005b343 |
13 | 35749803 |
14 | 207d8471 |
15 | 13d42749 |
hex | cd26123 |
215114019 has 16 divisors (see below), whose sum is σ = 291664512. Its totient is φ = 140995008.
The previous prime is 215114017. The next prime is 215114027. The reversal of 215114019 is 910411512.
It is a happy number.
It is not a de Polignac number, because 215114019 - 21 = 215114017 is a prime.
It is a super-2 number, since 2×2151140192 = 92548082340664722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 215114019.
It is not an unprimeable number, because it can be changed into a prime (215114017) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190992 + ... + 192114.
It is an arithmetic number, because the mean of its divisors is an integer number (18229032).
Almost surely, 2215114019 is an apocalyptic number.
215114019 is a deficient number, since it is larger than the sum of its proper divisors (76550493).
215114019 is a wasteful number, since it uses less digits than its factorization.
215114019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2146.
The product of its (nonzero) digits is 360, while the sum is 24.
The square root of 215114019 is about 14666.7657989074. The cubic root of 215114019 is about 599.1785230282.
The spelling of 215114019 in words is "two hundred fifteen million, one hundred fourteen thousand, nineteen".
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