Base | Representation |
---|---|
bin | 111011110110001… |
… | …1100100100001000 |
3 | 12011221200002021001 |
4 | 1313230130210020 |
5 | 13103040440130 |
6 | 531133224344 |
7 | 100522623454 |
oct | 16754344410 |
9 | 5157602231 |
10 | 2008140040 |
11 | 9405a7375 |
12 | 4806320b4 |
13 | 26006745a |
14 | 1509b7664 |
15 | bb46e6ca |
hex | 77b1c908 |
2008140040 has 32 divisors (see below), whose sum is σ = 4519644480. Its totient is φ = 803019712.
The previous prime is 2008140037. The next prime is 2008140047. The reversal of 2008140040 is 400418002.
It is not an unprimeable number, because it can be changed into a prime (2008140047) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207387 + ... + 216853.
It is an arithmetic number, because the mean of its divisors is an integer number (141238890).
Almost surely, 22008140040 is an apocalyptic number.
2008140040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2008140040 is an abundant number, since it is smaller than the sum of its proper divisors (2511504440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2008140040 is a wasteful number, since it uses less digits than its factorization.
2008140040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14781 (or 14777 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 19.
The square root of 2008140040 is about 44812.2755503445. The cubic root of 2008140040 is about 1261.6280374512.
Adding to 2008140040 its reverse (400418002), we get a palindrome (2408558042).
The spelling of 2008140040 in words is "two billion, eight million, one hundred forty thousand, forty".
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