Base | Representation |
---|---|
bin | 1010011111100110… |
… | …0100100011001110 |
3 | 21021022110200111210 |
4 | 2213321210203032 |
5 | 21232110340430 |
6 | 1143303355250 |
7 | 126543100341 |
oct | 24771444316 |
9 | 7238420453 |
10 | 2816886990 |
11 | 1216071985 |
12 | 667452b26 |
13 | 35b790748 |
14 | 1ca17c458 |
15 | 1174732b0 |
hex | a7e648ce |
2816886990 has 32 divisors (see below), whose sum is σ = 7116347520. Its totient is φ = 711634464.
The previous prime is 2816886977. The next prime is 2816887061. The reversal of 2816886990 is 996886182.
It is a Harshad number since it is a multiple of its sum of digits (57).
It is a self number, because there is not a number n which added to its sum of digits gives 2816886990.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2470384 + ... + 2471523.
It is an arithmetic number, because the mean of its divisors is an integer number (222385860).
Almost surely, 22816886990 is an apocalyptic number.
2816886990 is an abundant number, since it is smaller than the sum of its proper divisors (4299460530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2816886990 is a wasteful number, since it uses less digits than its factorization.
2816886990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4941936.
The product of its (nonzero) digits is 2985984, while the sum is 57.
The square root of 2816886990 is about 53074.3534110403. The cubic root of 2816886990 is about 1412.2875848383.
The spelling of 2816886990 in words is "two billion, eight hundred sixteen million, eight hundred eighty-six thousand, nine hundred ninety".
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