Base | Representation |
---|---|
bin | 101111100010100011… |
… | …0101010111110110000 |
3 | 100202111220102122112020 |
4 | 1133011012222332300 |
5 | 3133040310431042 |
6 | 114522222431440 |
7 | 10242625050036 |
oct | 1370506527660 |
9 | 322456378466 |
10 | 102091108272 |
11 | 3a32985075a |
12 | 17952132580 |
13 | 981cb0630a |
14 | 4d26a74556 |
15 | 29c7ae73ec |
hex | 17c51aafb0 |
102091108272 has 40 divisors (see below), whose sum is σ = 265074145776. Its totient is φ = 33857623296.
The previous prime is 102091108213. The next prime is 102091108277. The reversal of 102091108272 is 272801190201.
It is not an unprimeable number, because it can be changed into a prime (102091108277) 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, 5388763 + ... + 5407674.
Almost surely, 2102091108272 is an apocalyptic number.
102091108272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
102091108272 is an abundant number, since it is smaller than the sum of its proper divisors (162983037504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102091108272 is a wasteful number, since it uses less digits than its factorization.
102091108272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10796645 (or 10796639 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 33.
Adding to 102091108272 its reverse (272801190201), we get a palindrome (374892298473).
The spelling of 102091108272 in words is "one hundred two billion, ninety-one million, one hundred eight thousand, two hundred seventy-two".
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