Base | Representation |
---|---|
bin | 1111011111110… |
… | …10100001101001 |
3 | 100001121201211220 |
4 | 13233322201221 |
5 | 231240013001 |
6 | 20522212253 |
7 | 3135663444 |
oct | 757724151 |
9 | 301551756 |
10 | 130001001 |
11 | 67422749 |
12 | 37654089 |
13 | 20c19090 |
14 | 133a065b |
15 | b62dc36 |
hex | 7bfa869 |
130001001 has 16 divisors (see below), whose sum is σ = 188018880. Its totient is φ = 79421760.
The previous prime is 130000999. The next prime is 130001009. The reversal of 130001001 is 100100031.
It is not a de Polignac number, because 130001001 - 21 = 130000999 is a prime.
It is a super-2 number, since 2×1300010012 = 33800520522004002, which contains 22 as substring.
130001001 is a modest number, since divided by 1001 gives 130 as remainder.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (130001009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6570 + ... + 17411.
It is an arithmetic number, because the mean of its divisors is an integer number (11751180).
Almost surely, 2130001001 is an apocalyptic number.
It is an amenable number.
130001001 is a deficient number, since it is larger than the sum of its proper divisors (58017879).
130001001 is a wasteful number, since it uses less digits than its factorization.
130001001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24136.
The product of its (nonzero) digits is 3, while the sum is 6.
The square root of 130001001 is about 11401.7981476607. The cubic root of 130001001 is about 506.5810021280.
Adding to 130001001 its reverse (100100031), we get a palindrome (230101032).
The spelling of 130001001 in words is "one hundred thirty million, one thousand, one".
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