| Base | Representation |
|---|---|
| bin | 1011001001000010110… |
| … | …0111001100000010000 |
| 3 | 200022001102121221201101 |
| 4 | 2302100230321200100 |
| 5 | 11114000000000000 |
| 6 | 223533020114144 |
| 7 | 16554140165200 |
| oct | 2622054714020 |
| 9 | 608042557641 |
| 10 | 191406250000 |
| 11 | 741a1924679 |
| 12 | 31119695954 |
| 13 | 15084a8b1c4 |
| 14 | 939aa1a400 |
| 15 | 4ea3c92e6a |
| hex | 2c90b39810 |
191406250000 has 195 divisors, whose sum is σ = 539245605027. Its totient is φ = 65625000000.
The previous prime is 191406249949. The next prime is 191406250003. The reversal of 191406250000 is 52604191.
The square root of 191406250000 is 437500.
It is a perfect power (a square), and thus also a powerful number.
191406250000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 6 ways, for example, as 108296279056 + 83109970944 = 329084^2 + 288288^2 .
It is a Harshad number since it is a multiple of its sum of digits (28).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (191406250003) by changing a digit.
It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 27343749997 + ... + 27343750003.
Almost surely, 2191406250000 is an apocalyptic number.
191406250000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
191406250000 is the 437500-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 191406250000
191406250000 is an abundant number, since it is smaller than the sum of its proper divisors (347839355027).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
191406250000 is an frugal number, since it uses more digits than its factorization.
191406250000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82 (or 14 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 28.
Multiplying 191406250000 by its sum of digits (28), we get a cube (5359375000000 = 175003).
Adding to 191406250000 its reverse (52604191), we get a palindrome (191458854191).
The spelling of 191406250000 in words is "one hundred ninety-one billion, four hundred six million, two hundred fifty thousand".
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