Base | Representation |
---|---|
bin | 111100100011001010… |
… | …0010101010001101001 |
3 | 110102121221001002201201 |
4 | 1321012110111101221 |
5 | 4112244330112100 |
6 | 135422343244201 |
7 | 12252143113222 |
oct | 1710624252151 |
9 | 412557032651 |
10 | 130028754025 |
11 | 50165929495 |
12 | 2124a449661 |
13 | c352b31651 |
14 | 6417232249 |
15 | 35b064336a |
hex | 1e46515469 |
130028754025 has 27 divisors (see below), whose sum is σ = 165358155333. Its totient is φ = 101428161600.
The previous prime is 130028754017. The next prime is 130028754049. The reversal of 130028754025 is 520457820031.
The square root of 130028754025 is 360595.
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 54731198809 + 75297555216 = 233947^2 + 274404^2 .
It is not a de Polignac number, because 130028754025 - 23 = 130028754017 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 73921096 + ... + 73922854.
Almost surely, 2130028754025 is an apocalyptic number.
130028754025 is the 360595-th square number.
130028754025 is the 180298-th centered octagonal number.
It is an amenable number.
130028754025 is a deficient number, since it is larger than the sum of its proper divisors (35329401308).
130028754025 is an frugal number, since it uses more digits than its factorization.
130028754025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3610 (or 1805 counting only the distinct ones).
The product of its (nonzero) digits is 67200, while the sum is 37.
The spelling of 130028754025 in words is "one hundred thirty billion, twenty-eight million, seven hundred fifty-four thousand, twenty-five".
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