| Base | Representation |
|---|---|
| bin | 1000011100011110000… |
| … | …0000110010001000001 |
| 3 | 111212110221111110211100 |
| 4 | 2013013200012101001 |
| 5 | 4334111214013100 |
| 6 | 150352125205013 |
| 7 | 13324146106242 |
| oct | 2070740062101 |
| 9 | 455427443740 |
| 10 | 145081001025 |
| 11 | 5658a496444 |
| 12 | 2414b400769 |
| 13 | 108b144178c |
| 14 | 7044376cc9 |
| 15 | 3b91d28400 |
| hex | 21c7806441 |
145081001025 has 81 divisors (see below), whose sum is σ = 264490389891. Its totient is φ = 76020547680.
The previous prime is 145081000979. The next prime is 145081001047. The reversal of 145081001025 is 520100180541.
The square root of 145081001025 is 380895.
It is a perfect power (a square), and thus also a powerful number.
145081001025 is a `hidden beast` number, since 1 + 450 + 8 + 100 + 102 + 5 = 666.
It can be written as a sum of positive squares in only one way, i.e., 52229160369 + 92851840656 = 228537^2 + 304716^2 .
It is not a de Polignac number, because 145081001025 - 211 = 145080998977 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 145081001025.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 382799286 + ... + 382799664.
Almost surely, 2145081001025 is an apocalyptic number.
145081001025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
145081001025 is the 380895-th square number.
145081001025 is the 190448-th centered octagonal number.
It is an amenable number.
145081001025 is a deficient number, since it is larger than the sum of its proper divisors (119409388866).
145081001025 is an frugal number, since it uses more digits than its factorization.
145081001025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 908 (or 454 counting only the distinct ones).
The product of its (nonzero) digits is 1600, while the sum is 27.
Multiplying 145081001025 by its product of nonzero digits (1600), we get a square (232129601640000 = 152358002).
Adding to 145081001025 its reverse (520100180541), we get a palindrome (665181181566).
The spelling of 145081001025 in words is "one hundred forty-five billion, eighty-one million, one thousand, twenty-five".
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