Base | Representation |
---|---|
bin | 111010101110100… |
… | …0101111101110001 |
3 | 12002022221212100100 |
4 | 1311131011331301 |
5 | 13013430422011 |
6 | 523311543013 |
7 | 66555330312 |
oct | 16535057561 |
9 | 5068855310 |
10 | 1970560881 |
11 | 92136a613 |
12 | 46bb2aa69 |
13 | 25533a773 |
14 | 1499d4609 |
15 | b7ee9d56 |
hex | 75745f71 |
1970560881 has 9 divisors (see below), whose sum is σ = 2846558091. Its totient is φ = 1313618472.
The previous prime is 1970560853. The next prime is 1970560913. The reversal of 1970560881 is 1880650791.
The square root of 1970560881 is 44391.
It is a perfect power (a square), and thus also a powerful number.
1970560881 is a `hidden beast` number, since 1 + 9 + 7 + 0 + 560 + 8 + 81 = 666.
It can be written as a sum of positive squares in only one way, i.e., 723341025 + 1247219856 = 26895^2 + 35316^2 .
It is a tau number, because it is divible by the number of its divisors (9).
It is not a de Polignac number, because 1970560881 - 29 = 1970560369 is a prime.
It is a super-2 number, since 2×19705608812 = 7766220371454992322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1970560181) 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, 125775 + ... + 140571.
Almost surely, 21970560881 is an apocalyptic number.
1970560881 is the 44391-st square number.
1970560881 is the 22196-th centered octagonal number.
It is an amenable number.
1970560881 is a deficient number, since it is larger than the sum of its proper divisors (875997210).
1970560881 is an frugal number, since it uses more digits than its factorization.
1970560881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29600 (or 14800 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 45.
The cubic root of 1970560881 is about 1253.7086405199.
The spelling of 1970560881 in words is "one billion, nine hundred seventy million, five hundred sixty thousand, eight hundred eighty-one".
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