Base | Representation |
---|---|
bin | 111111111111000… |
… | …1110000100011110 |
3 | 12112121222202121210 |
4 | 1333332032010132 |
5 | 13344114020430 |
6 | 553014005250 |
7 | 104130225516 |
oct | 17776160436 |
9 | 5477882553 |
10 | 2147016990 |
11 | a01a31708 |
12 | 4bb046826 |
13 | 282a70571 |
14 | 165208846 |
15 | c87532b0 |
hex | 7ff8e11e |
2147016990 has 32 divisors (see below), whose sum is σ = 5187434400. Its totient is φ = 568694144.
The previous prime is 2147016983. The next prime is 2147017007. The reversal of 2147016990 is 996107412.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235689 + ... + 244628.
It is an arithmetic number, because the mean of its divisors is an integer number (162107325).
Almost surely, 22147016990 is an apocalyptic number.
2147016990 is an abundant number, since it is smaller than the sum of its proper divisors (3040417410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2147016990 is a wasteful number, since it uses less digits than its factorization.
2147016990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 480476.
The product of its (nonzero) digits is 27216, while the sum is 39.
The square root of 2147016990 is about 46335.9146882847. The cubic root of 2147016990 is about 1290.0656958310.
The spelling of 2147016990 in words is "two billion, one hundred forty-seven million, sixteen thousand, nine hundred ninety".
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