Base | Representation |
---|---|
bin | 11110111110101000010… |
… | …111010110010000010000 |
3 | 21112111220001210222021102 |
4 | 132332220113112100100 |
5 | 234334322334114042 |
6 | 4305550030043532 |
7 | 306542323136156 |
oct | 36765027262020 |
9 | 7474801728242 |
10 | 2128833504272 |
11 | 750919018462 |
12 | 2a46ba0495a8 |
13 | 125995875737 |
14 | 7507106b3d6 |
15 | 3a598722b32 |
hex | 1efa85d6410 |
2128833504272 has 80 divisors (see below), whose sum is σ = 4277583002880. Its totient is φ = 1025516422656.
The previous prime is 2128833504269. The next prime is 2128833504283. The reversal of 2128833504272 is 2724053388212.
It is a super-2 number, since 2×21288335042722 (a number of 25 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115044173 + ... + 115062675.
It is an arithmetic number, because the mean of its divisors is an integer number (53469787536).
Almost surely, 22128833504272 is an apocalyptic number.
It is an amenable number.
2128833504272 is an abundant number, since it is smaller than the sum of its proper divisors (2148749498608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2128833504272 is a wasteful number, since it uses less digits than its factorization.
2128833504272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20440 (or 20434 counting only the distinct ones).
The product of its (nonzero) digits is 1290240, while the sum is 47.
The spelling of 2128833504272 in words is "two trillion, one hundred twenty-eight billion, eight hundred thirty-three million, five hundred four thousand, two hundred seventy-two".
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