Base | Representation |
---|---|
bin | 111000101000110… |
… | …1101111101000000 |
3 | 11220110001212211202 |
4 | 1301101231331000 |
5 | 12343010020310 |
6 | 512325400332 |
7 | 65044505045 |
oct | 16121557500 |
9 | 4813055752 |
10 | 1900470080 |
11 | 895847333 |
12 | 4505690a8 |
13 | 243969812 |
14 | 14058b1cc |
15 | b1ca23a5 |
hex | 7146df40 |
1900470080 has 42 divisors (see below), whose sum is σ = 4527352134. Its totient is φ = 759876096.
The previous prime is 1900470031. The next prime is 1900470083. The reversal of 1900470080 is 800740091.
It can be written as a sum of positive squares in 3 ways, for example, as 1097994496 + 802475584 = 33136^2 + 28328^2 .
It is a super-2 number, since 2×19004700802 = 7223573049950412800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1900470083) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778622 + ... + 781058.
Almost surely, 21900470080 is an apocalyptic number.
1900470080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1900470080 is an abundant number, since it is smaller than the sum of its proper divisors (2626882054).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1900470080 is an frugal number, since it uses more digits than its factorization.
1900470080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4891 (or 2444 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 29.
The square root of 1900470080 is about 43594.3812893359. The cubic root of 1900470080 is about 1238.6644656601.
The spelling of 1900470080 in words is "one billion, nine hundred million, four hundred seventy thousand, eighty".
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