Base | Representation |
---|---|
bin | 10101100100110… |
… | …01000100011101 |
3 | 110121112211200201 |
4 | 22302121010131 |
5 | 332312411140 |
6 | 25543023501 |
7 | 4325215306 |
oct | 1262310435 |
9 | 417484621 |
10 | 180982045 |
11 | 93183542 |
12 | 5073ab91 |
13 | 2b658b8a |
14 | 1a0717ad |
15 | 10d4e49a |
hex | ac9911d |
180982045 has 8 divisors (see below), whose sum is σ = 217354680. Its totient is φ = 144668160.
The previous prime is 180982037. The next prime is 180982057. The reversal of 180982045 is 540289081.
It can be written as a sum of positive squares in 4 ways, for example, as 22146436 + 158835609 = 4706^2 + 12603^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 180982045 - 23 = 180982037 is a prime.
It is a super-2 number, since 2×1809820452 = 65509001224764050, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 180981995 and 180982013.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7596 + ... + 20485.
It is an arithmetic number, because the mean of its divisors is an integer number (27169335).
Almost surely, 2180982045 is an apocalyptic number.
It is an amenable number.
180982045 is a deficient number, since it is larger than the sum of its proper divisors (36372635).
180982045 is a wasteful number, since it uses less digits than its factorization.
180982045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29375.
The product of its (nonzero) digits is 23040, while the sum is 37.
The square root of 180982045 is about 13452.9567382044. The cubic root of 180982045 is about 565.6465775068.
The spelling of 180982045 in words is "one hundred eighty million, nine hundred eighty-two thousand, forty-five".
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