Base | Representation |
---|---|
bin | 1111110011110100… |
… | …01101001111000001 |
3 | 210220112012111201221 |
4 | 13321322031033001 |
5 | 114340331041031 |
6 | 3522121555041 |
7 | 420222464344 |
oct | 77172151701 |
9 | 23815174657 |
10 | 8487752641 |
11 | 366612a205 |
12 | 178a645a81 |
13 | a535ca754 |
14 | 5a739245b |
15 | 34a244a11 |
hex | 1f9e8d3c1 |
8487752641 has 9 divisors (see below), whose sum is σ = 8551706313. Its totient is φ = 8424275760.
The previous prime is 8487752621. The next prime is 8487752657. The reversal of 8487752641 is 1462577848.
The square root of 8487752641 is 92129.
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 953512641 + 7534240000 = 30879^2 + 86800^2 .
It is not a de Polignac number, because 8487752641 - 215 = 8487719873 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8487752621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16675095 + ... + 16675603.
Almost surely, 28487752641 is an apocalyptic number.
8487752641 is the 92129-th square number.
8487752641 is the 46065-th centered octagonal number.
It is an amenable number.
8487752641 is a deficient number, since it is larger than the sum of its proper divisors (63953672).
8487752641 is an frugal number, since it uses more digits than its factorization.
8487752641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1380 (or 690 counting only the distinct ones).
The product of its digits is 3010560, while the sum is 52.
The cubic root of 8487752641 is about 2039.8468936259.
The spelling of 8487752641 in words is "eight billion, four hundred eighty-seven million, seven hundred fifty-two thousand, six hundred forty-one".
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