| Base | Representation |
|---|---|
| bin | 111011000000111… |
| … | …0011001000000000 |
| 3 | 12010000001201110121 |
| 4 | 1312001303020000 |
| 5 | 13023411324130 |
| 6 | 524254110024 |
| 7 | 100033164253 |
| oct | 16601631000 |
| 9 | 5100051417 |
| 10 | 1980183040 |
| 11 | 926841910 |
| 12 | 4731ab314 |
| 13 | 257329354 |
| 14 | 14adbb09a |
| 15 | b8c9ad7a |
| hex | 76073200 |
1980183040 has 160 divisors (see below), whose sum is σ = 5453490240. Its totient is φ = 681984000.
The previous prime is 1980182987. The next prime is 1980183047. The reversal of 1980183040 is 403810891.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (160).
It is a super-2 number, since 2×19801830402 = 7842249743807283200, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1980182987 and 1980183005.
It is not an unprimeable number, because it can be changed into a prime (1980183047) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533190 + ... + 536890.
It is an arithmetic number, because the mean of its divisors is an integer number (34084314).
Almost surely, 21980183040 is an apocalyptic number.
1980183040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1980183040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2726745120).
1980183040 is an abundant number, since it is smaller than the sum of its proper divisors (3473307200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1980183040 is a wasteful number, since it uses less digits than its factorization.
1980183040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3754 (or 3738 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 34.
The square root of 1980183040 is about 44499.2476340893. The cubic root of 1980183040 is about 1255.7459288375.
The spelling of 1980183040 in words is "one billion, nine hundred eighty million, one hundred eighty-three thousand, forty".
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