Base | Representation |
---|---|
bin | 1111010111101110… |
… | …11000101100011001 |
3 | 210022002211202011000 |
4 | 13223313120230121 |
5 | 113400021211441 |
6 | 3442503455213 |
7 | 411331652142 |
oct | 75367305431 |
9 | 23262752130 |
10 | 8252132121 |
11 | 3555128002 |
12 | 1723757509 |
13 | a1685111c |
14 | 583d7aac9 |
15 | 3347012b6 |
hex | 1ebdd8b19 |
8252132121 has 8 divisors (see below), whose sum is σ = 12225380960. Its totient is φ = 5501421396.
The previous prime is 8252132101. The next prime is 8252132131. The reversal of 8252132121 is 1212312528.
It is not a de Polignac number, because 8252132121 - 214 = 8252115737 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 305634523 = 8252132121 / (8 + 2 + 5 + 2 + 1 + 3 + 2 + 1 + 2 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8252132101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152817235 + ... + 152817288.
It is an arithmetic number, because the mean of its divisors is an integer number (1528172620).
Almost surely, 28252132121 is an apocalyptic number.
It is an amenable number.
8252132121 is a deficient number, since it is larger than the sum of its proper divisors (3973248839).
8252132121 is a wasteful number, since it uses less digits than its factorization.
8252132121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 305634532 (or 305634526 counting only the distinct ones).
The product of its digits is 1920, while the sum is 27.
The square root of 8252132121 is about 90841.2468045216. The cubic root of 8252132121 is about 2020.7940642616.
Adding to 8252132121 its reverse (1212312528), we get a palindrome (9464444649).
The spelling of 8252132121 in words is "eight billion, two hundred fifty-two million, one hundred thirty-two thousand, one hundred twenty-one".
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