Base | Representation |
---|---|
bin | 101010001010100011… |
… | …011010100101001001 |
3 | 11022212020102022010220 |
4 | 222022203122211021 |
5 | 1220210144301211 |
6 | 32444303300253 |
7 | 3161636313105 |
oct | 521243324511 |
9 | 138766368126 |
10 | 45274212681 |
11 | 182231270a5 |
12 | 89362aa689 |
13 | 4366980579 |
14 | 2296c4c905 |
15 | 129ea56806 |
hex | a8a8da949 |
45274212681 has 32 divisors (see below), whose sum is σ = 65628541440. Its totient is φ = 27668075904.
The previous prime is 45274212671. The next prime is 45274212701. The reversal of 45274212681 is 18621247254.
It is not a de Polignac number, because 45274212681 - 29 = 45274212169 is a prime.
It is a super-2 number, since 2×452742126812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (45274212671) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175941 + ... + 348573.
It is an arithmetic number, because the mean of its divisors is an integer number (2050891920).
Almost surely, 245274212681 is an apocalyptic number.
It is an amenable number.
45274212681 is a deficient number, since it is larger than the sum of its proper divisors (20354328759).
45274212681 is a wasteful number, since it uses less digits than its factorization.
45274212681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 172805.
The product of its digits is 215040, while the sum is 42.
The spelling of 45274212681 in words is "forty-five billion, two hundred seventy-four million, two hundred twelve thousand, six hundred eighty-one".
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