Base | Representation |
---|---|
bin | 111011101000011111… |
… | …000100010001010111 |
3 | 20010021100202000202110 |
4 | 323220133010101113 |
5 | 2022113140001330 |
6 | 45225345042103 |
7 | 4424503010316 |
oct | 735037042127 |
9 | 203240660673 |
10 | 64030000215 |
11 | 251782a1955 |
12 | 104ab626333 |
13 | 60656539bc |
14 | 3155bb627d |
15 | 19eb451db0 |
hex | ee87c4457 |
64030000215 has 32 divisors (see below), whose sum is σ = 105049163520. Its totient is φ = 33292790784.
The previous prime is 64030000213. The next prime is 64030000241. The reversal of 64030000215 is 51200003046.
It is a happy number.
It is not a de Polignac number, because 64030000215 - 21 = 64030000213 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 64030000191 and 64030000200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64030000213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230925 + ... + 425894.
It is an arithmetic number, because the mean of its divisors is an integer number (3282786360).
Almost surely, 264030000215 is an apocalyptic number.
64030000215 is a deficient number, since it is larger than the sum of its proper divisors (41019163305).
64030000215 is a wasteful number, since it uses less digits than its factorization.
64030000215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 656991.
The product of its (nonzero) digits is 720, while the sum is 21.
The spelling of 64030000215 in words is "sixty-four billion, thirty million, two hundred fifteen", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •