Base | Representation |
---|---|
bin | 1101101100110010010… |
… | …01100101000001111001 |
3 | 1200000000100100022021100 |
4 | 12312121021211001321 |
5 | 30203014020012111 |
6 | 1000125101402013 |
7 | 46002621203100 |
oct | 6663111450171 |
9 | 1600010308240 |
10 | 470720860281 |
11 | 1716a4721471 |
12 | 7728b569309 |
13 | 35509219c29 |
14 | 18ad6823037 |
15 | c3a044c756 |
hex | 6d99265079 |
470720860281 has 81 divisors (see below), whose sum is σ = 813815262351. Its totient is φ = 261417137184.
The previous prime is 470720860279. The next prime is 470720860301. The reversal of 470720860281 is 182068027074.
The square root of 470720860281 is 686091.
It is a perfect power (a square), and thus also a powerful number.
470720860281 is a `hidden beast` number, since 470 + 7 + 20 + 86 + 0 + 2 + 81 = 666.
It can be written as a sum of positive squares in only one way, i.e., 421207490025 + 49513370256 = 649005^2 + 222516^2 .
It is not a de Polignac number, because 470720860281 - 21 = 470720860279 is a prime.
It is a super-2 number, since 2×4707208602812 (a number of 24 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (470720860201) 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 80 ways as a sum of consecutive naturals, for example, 533092266 + ... + 533093148.
Almost surely, 2470720860281 is an apocalyptic number.
470720860281 is the 686091-st square number.
470720860281 is the 343046-th centered octagonal number.
It is an amenable number.
470720860281 is a deficient number, since it is larger than the sum of its proper divisors (343094402070).
470720860281 is an frugal number, since it uses more digits than its factorization.
470720860281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1860 (or 930 counting only the distinct ones).
The product of its (nonzero) digits is 301056, while the sum is 45.
The spelling of 470720860281 in words is "four hundred seventy billion, seven hundred twenty million, eight hundred sixty thousand, two hundred eighty-one".
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