Base | Representation |
---|---|
bin | 101111100101110111… |
… | …0011101100000100001 |
3 | 100202210122110210200010 |
4 | 1133023232131200201 |
5 | 3133302230432040 |
6 | 114541231515133 |
7 | 10245444245631 |
oct | 1371356354041 |
9 | 322718423603 |
10 | 102202202145 |
11 | 3a38652a17a |
12 | 17983388aa9 |
13 | 9839b32534 |
14 | 4d377126c1 |
15 | 29d273de80 |
hex | 17cbb9d821 |
102202202145 has 16 divisors (see below), whose sum is σ = 163527831360. Its totient is φ = 54506405184.
The previous prime is 102202202101. The next prime is 102202202147. The reversal of 102202202145 is 541202202201.
It is not a de Polignac number, because 102202202145 - 216 = 102202136609 is a prime.
It is not an unprimeable number, because it can be changed into a prime (102202202147) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755266 + ... + 880244.
It is an arithmetic number, because the mean of its divisors is an integer number (10220489460).
Almost surely, 2102202202145 is an apocalyptic number.
102202202145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
102202202145 is a deficient number, since it is larger than the sum of its proper divisors (61325629215).
102202202145 is a wasteful number, since it uses less digits than its factorization.
102202202145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 179504.
The product of its (nonzero) digits is 640, while the sum is 21.
Adding to 102202202145 its reverse (541202202201), we get a palindrome (643404404346).
The spelling of 102202202145 in words is "one hundred two billion, two hundred two million, two hundred two thousand, one hundred forty-five".
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