| Base | Representation |
|---|---|
| bin | 111111011010110… |
| … | …1001111101110100 |
| 3 | 12111022012100000000 |
| 4 | 1332311221331310 |
| 5 | 13324231312430 |
| 6 | 551054151300 |
| 7 | 103506441204 |
| oct | 17665517564 |
| 9 | 5438170000 |
| 10 | 2127994740 |
| 11 | 9a2219a43 |
| 12 | 4b47b2530 |
| 13 | 27bb401b1 |
| 14 | 162896404 |
| 15 | c6c46e60 |
| hex | 7ed69f74 |
2127994740 has 108 divisors (see below), whose sum is σ = 6703256196. Its totient is φ = 567430272.
The previous prime is 2127994691. The next prime is 2127994787. The reversal of 2127994740 is 474997212.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 1258688484 + 869306256 = 35478^2 + 29484^2 .
It is a tau number, because it is divible by the number of its divisors (108).
It is a super-2 number, since 2×21279947402 = 9056723226935335200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123112 + ... + 139328.
It is an arithmetic number, because the mean of its divisors is an integer number (62067187).
Almost surely, 22127994740 is an apocalyptic number.
2127994740 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 2127994740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3351628098).
2127994740 is an abundant number, since it is smaller than the sum of its proper divisors (4575261456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2127994740 is an equidigital number, since it uses as much as digits as its factorization.
2127994740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16250 (or 16227 counting only the distinct ones).
The product of its (nonzero) digits is 254016, while the sum is 45.
The square root of 2127994740 is about 46130.1933661675. The cubic root of 2127994740 is about 1286.2444584926.
The spelling of 2127994740 in words is "two billion, one hundred twenty-seven million, nine hundred ninety-four thousand, seven hundred forty".
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