Base | Representation |
---|---|
bin | 111110101001101… |
… | …0000011100010000 |
3 | 12102111122211101020 |
4 | 1331103100130100 |
5 | 13301130400310 |
6 | 544333235440 |
7 | 103044256131 |
oct | 17523203420 |
9 | 5374584336 |
10 | 2102200080 |
11 | 989701042 |
12 | 4a8032b80 |
13 | 2766ab396 |
14 | 15d29dc88 |
15 | c484e170 |
hex | 7d4d0710 |
2102200080 has 40 divisors (see below), whose sum is σ = 6516820992. Its totient is φ = 560586624.
The previous prime is 2102200063. The next prime is 2102200081. The reversal of 2102200080 is 800022012.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (2102200081) 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, 4379344 + ... + 4379823.
Almost surely, 22102200080 is an apocalyptic number.
2102200080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2102200080 is an abundant number, since it is smaller than the sum of its proper divisors (4414620912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2102200080 is a wasteful number, since it uses less digits than its factorization.
2102200080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8759183 (or 8759177 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
The square root of 2102200080 is about 45849.7555064365. The cubic root of 2102200080 is about 1281.0262115430.
Adding to 2102200080 its reverse (800022012), we get a palindrome (2902222092).
The spelling of 2102200080 in words is "two billion, one hundred two million, two hundred thousand, eighty".
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