Base | Representation |
---|---|
bin | 111111011110111… |
… | …0011010001111100 |
3 | 12111110012211002100 |
4 | 1332331303101330 |
5 | 13330303130134 |
6 | 551212025100 |
7 | 103533543450 |
oct | 17675632174 |
9 | 5443184070 |
10 | 2130130044 |
11 | 9a3448259 |
12 | 4b5462190 |
13 | 27c40a0a3 |
14 | 162c90660 |
15 | c7019999 |
hex | 7ef7347c |
2130130044 has 72 divisors (see below), whose sum is σ = 6296850560. Its totient is φ = 594451872.
The previous prime is 2130130043. The next prime is 2130130111. The reversal of 2130130044 is 4400310312.
2130130044 is a `hidden beast` number, since 21 + 301 + 300 + 44 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 2130129999 and 2130130026.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130130043) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87454 + ... + 109125.
Almost surely, 22130130044 is an apocalyptic number.
It is an amenable number.
2130130044 is an abundant number, since it is smaller than the sum of its proper divisors (4166720516).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130130044 is a wasteful number, since it uses less digits than its factorization.
2130130044 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 196639 (or 196634 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2130130044 is about 46153.3318840579. The cubic root of 2130130044 is about 1286.6745354950.
Adding to 2130130044 its reverse (4400310312), we get a palindrome (6530440356).
The spelling of 2130130044 in words is "two billion, one hundred thirty million, one hundred thirty thousand, forty-four".
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