Base | Representation |
---|---|
bin | 111011010011011… |
… | …010100111010010 |
3 | 2120100011110121222 |
4 | 323103122213102 |
5 | 4014201223430 |
6 | 242421045042 |
7 | 33440616500 |
oct | 7323324722 |
9 | 2510143558 |
10 | 994945490 |
11 | 470691300 |
12 | 239256782 |
13 | 12b18a656 |
14 | 961d3670 |
15 | 5c5339e5 |
hex | 3b4da9d2 |
994945490 has 144 divisors (see below), whose sum is σ = 2326881816. Its totient is φ = 305141760.
The previous prime is 994945489. The next prime is 994945499. The reversal of 994945490 is 94549499.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 934463761 + 60481729 = 30569^2 + 7777^2 .
Together with 1331936326 it forms an amicable pair .
It is not an unprimeable number, because it can be changed into a prime (994945499) by changing a digit.
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 71 ways as a sum of consecutive naturals, for example, 5751044 + ... + 5751216.
Almost surely, 2994945490 is an apocalyptic number.
994945490 is an abundant number, since it is smaller than the sum of its proper divisors (1331936326).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
994945490 is a wasteful number, since it uses less digits than its factorization.
994945490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 313 (or 295 counting only the distinct ones).
The product of its (nonzero) digits is 2099520, while the sum is 53.
The square root of 994945490 is about 31542.7565377536. The cubic root of 994945490 is about 998.3123166606.
The spelling of 994945490 in words is "nine hundred ninety-four million, nine hundred forty-five thousand, four hundred ninety".
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