Base | Representation |
---|---|
bin | 1111010011000001… |
… | …10010000001110001 |
3 | 210012100112221210200 |
4 | 13221200302001301 |
5 | 113304414332040 |
6 | 3434533345413 |
7 | 410342251155 |
oct | 75140620161 |
9 | 23170487720 |
10 | 8212652145 |
11 | 3534912125 |
12 | 1712498269 |
13 | a0b60a1a9 |
14 | 57ca21065 |
15 | 331003630 |
hex | 1e9832071 |
8212652145 has 48 divisors (see below), whose sum is σ = 15086373120. Its totient is φ = 4118671872.
The previous prime is 8212652143. The next prime is 8212652171. The reversal of 8212652145 is 5412562128.
8212652145 is a `hidden beast` number, since 8 + 2 + 126 + 521 + 4 + 5 = 666.
8212652145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 8212652145 - 21 = 8212652143 is a prime.
It is not an unprimeable number, because it can be changed into a prime (8212652143) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 958872 + ... + 967398.
It is an arithmetic number, because the mean of its divisors is an integer number (314299440).
Almost surely, 28212652145 is an apocalyptic number.
8212652145 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
8212652145 is a deficient number, since it is larger than the sum of its proper divisors (6873720975).
8212652145 is a wasteful number, since it uses less digits than its factorization.
8212652145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9814 (or 9811 counting only the distinct ones).
The product of its digits is 38400, while the sum is 36.
The square root of 8212652145 is about 90623.6842387243. The cubic root of 8212652145 is about 2017.5662733950.
The spelling of 8212652145 in words is "eight billion, two hundred twelve million, six hundred fifty-two thousand, one hundred forty-five".
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