Base | Representation |
---|---|
bin | 111100110110111… |
… | …1011000000000000 |
3 | 12021022112110220000 |
4 | 1321231323000000 |
5 | 13140233100110 |
6 | 534344520000 |
7 | 101414255511 |
oct | 17155730000 |
9 | 5238473800 |
10 | 2042081280 |
11 | 958779988 |
12 | 48ba80000 |
13 | 2670bc325 |
14 | 1552d0a08 |
15 | be4261c0 |
hex | 79b7b000 |
2042081280 has 260 divisors, whose sum is σ = 7326292512. Its totient is φ = 544112640.
The previous prime is 2042081263. The next prime is 2042081281. The reversal of 2042081280 is 821802402.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (2042081281) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1658265 + ... + 1659495.
Almost surely, 22042081280 is an apocalyptic number.
2042081280 is a gapful number since it is divisible by the number (20) 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 2042081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3663146256).
2042081280 is an abundant number, since it is smaller than the sum of its proper divisors (5284211232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2042081280 is an equidigital number, since it uses as much as digits as its factorization.
2042081280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1272 (or 1241 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 27.
The square root of 2042081280 is about 45189.3934458076. The cubic root of 2042081280 is about 1268.6963041007.
Adding to 2042081280 its reverse (821802402), we get a palindrome (2863883682).
The spelling of 2042081280 in words is "two billion, forty-two million, eighty-one thousand, two hundred eighty".
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