Base | Representation |
---|---|
bin | 1010100010001101111… |
… | …0101101000111000100 |
3 | 122022011002002121020201 |
4 | 2220203132231013010 |
5 | 10431123333044314 |
6 | 215050504340244 |
7 | 16034643403222 |
oct | 2504336550704 |
9 | 568132077221 |
10 | 180983878084 |
11 | 6a833754369 |
12 | 2b0ab174684 |
13 | 140b3728529 |
14 | 8a8c74bb12 |
15 | 4a93ca2b74 |
hex | 2a237ad1c4 |
180983878084 has 27 divisors (see below), whose sum is σ = 318156173517. Its totient is φ = 90083959344.
The previous prime is 180983878069. The next prime is 180983878087. The reversal of 180983878084 is 480878389081.
The square root of 180983878084 is 425422.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 590004100 + 180393873984 = 24290^2 + 424728^2 .
It is a super-2 number, since 2×1809838780842 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (180983878087) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 295242562 + ... + 295243174.
Almost surely, 2180983878084 is an apocalyptic number.
180983878084 is the 425422-nd square number.
It is an amenable number.
180983878084 is a deficient number, since it is larger than the sum of its proper divisors (137172295433).
180983878084 is an frugal number, since it uses more digits than its factorization.
180983878084 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1924 (or 962 counting only the distinct ones).
The product of its (nonzero) digits is 24772608, while the sum is 64.
Multiplying 180983878084 by its sum of digits (64), we get a square (11582968197376 = 34033762).
The spelling of 180983878084 in words is "one hundred eighty billion, nine hundred eighty-three million, eight hundred seventy-eight thousand, eighty-four".
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