Base | Representation |
---|---|
bin | 101010001001110011… |
… | …111010100101110001 |
3 | 11022211100222200111010 |
4 | 222021303322211301 |
5 | 1220144002322011 |
6 | 32443140341133 |
7 | 3161425422351 |
oct | 521163724561 |
9 | 138740880433 |
10 | 45261760881 |
11 | 182170a1957 |
12 | 89320a47a9 |
13 | 4364210a3c |
14 | 229532ab61 |
15 | 129d8e71a6 |
hex | a89cfa971 |
45261760881 has 16 divisors (see below), whose sum is σ = 63425940480. Its totient is φ = 28654921680.
The previous prime is 45261760861. The next prime is 45261760889. The reversal of 45261760881 is 18806716254.
It is not a de Polignac number, because 45261760881 - 214 = 45261744497 is a prime.
It is a super-2 number, since 2×452617608812 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 45261760881.
It is not an unprimeable number, because it can be changed into a prime (45261760889) 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 15 ways as a sum of consecutive naturals, for example, 2350005 + ... + 2369186.
It is an arithmetic number, because the mean of its divisors is an integer number (3964121280).
Almost surely, 245261760881 is an apocalyptic number.
It is an amenable number.
45261760881 is a deficient number, since it is larger than the sum of its proper divisors (18164179599).
45261760881 is a wasteful number, since it uses less digits than its factorization.
45261760881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4719356.
The product of its (nonzero) digits is 645120, while the sum is 48.
The spelling of 45261760881 in words is "forty-five billion, two hundred sixty-one million, seven hundred sixty thousand, eight hundred eighty-one".
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