Base | Representation |
---|---|
bin | 10111000001000… |
… | …00011110110001 |
3 | 111110022000122201 |
4 | 23200200132301 |
5 | 343411233100 |
6 | 31054103201 |
7 | 4533035200 |
oct | 1340403661 |
9 | 443260581 |
10 | 193071025 |
11 | 99a90134 |
12 | 547aab01 |
13 | 30ccc514 |
14 | 1b8db237 |
15 | 11e3b36a |
hex | b8207b1 |
193071025 has 27 divisors (see below), whose sum is σ = 279198369. Its totient is φ = 132058080.
The previous prime is 193071001. The next prime is 193071029. The reversal of 193071025 is 520170391.
The square root of 193071025 is 13895.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 194481 + 192876544 = 441^2 + 13888^2 .
It is not a de Polignac number, because 193071025 - 27 = 193070897 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 193070984 and 193071002.
It is not an unprimeable number, because it can be changed into a prime (193071029) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 486127 + ... + 486523.
Almost surely, 2193071025 is an apocalyptic number.
193071025 is the 13895-th square number.
193071025 is the 6948-th centered octagonal number.
It is an amenable number.
193071025 is a deficient number, since it is larger than the sum of its proper divisors (86127344).
193071025 is an frugal number, since it uses more digits than its factorization.
193071025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 818 (or 409 counting only the distinct ones).
The product of its (nonzero) digits is 1890, while the sum is 28.
The cubic root of 193071025 is about 577.9705378437.
The spelling of 193071025 in words is "one hundred ninety-three million, seventy-one thousand, twenty-five".
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