Base | Representation |
---|---|
bin | 1110110110101111… |
… | …01010111111110001 |
3 | 202120211002102202111 |
4 | 13123113222333301 |
5 | 112313144224100 |
6 | 3355220045321 |
7 | 401431431361 |
oct | 73327527761 |
9 | 22524072674 |
10 | 7975383025 |
11 | 3422994345 |
12 | 1666b33841 |
13 | 9a140436c |
14 | 5592da9a1 |
15 | 31a2866ba |
hex | 1db5eaff1 |
7975383025 has 27 divisors (see below), whose sum is σ = 10109587971. Its totient is φ = 6241347840.
The previous prime is 7975383023. The next prime is 7975383049. The reversal of 7975383025 is 5203835797.
The square root of 7975383025 is 89305.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 13 ways, for example, as 5185008049 + 2790374976 = 72007^2 + 52824^2 .
It is not a de Polignac number, because 7975383025 - 21 = 7975383023 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 7975383025.
It is not an unprimeable number, because it can be changed into a prime (7975383023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23665657 + ... + 23665993.
Almost surely, 27975383025 is an apocalyptic number.
7975383025 is the 89305-th square number.
7975383025 is the 44653-rd centered octagonal number.
It is an amenable number.
7975383025 is a deficient number, since it is larger than the sum of its proper divisors (2134204946).
7975383025 is an frugal number, since it uses more digits than its factorization.
7975383025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 790 (or 395 counting only the distinct ones).
The product of its (nonzero) digits is 1587600, while the sum is 49.
The cubic root of 7975383025 is about 1997.9464776613.
Multiplying 7975383025 by its sum of digits (49), we get a square (390793768225 = 6251352).
The spelling of 7975383025 in words is "seven billion, nine hundred seventy-five million, three hundred eighty-three thousand, twenty-five".
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