Base | Representation |
---|---|
bin | 1111100001100… |
… | …00001111111110 |
3 | 100002000220201000 |
4 | 13300300033332 |
5 | 231314033204 |
6 | 20531031130 |
7 | 3140601135 |
oct | 760601776 |
9 | 302026630 |
10 | 130221054 |
11 | 67563007 |
12 | 3773b4a6 |
13 | 20c952a2 |
14 | 1341a91c |
15 | b674039 |
hex | 7c303fe |
130221054 has 32 divisors (see below), whose sum is σ = 306404640. Its totient is φ = 40853376.
The previous prime is 130221001. The next prime is 130221097. The reversal of 130221054 is 450122031.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70009 + ... + 71844.
It is an arithmetic number, because the mean of its divisors is an integer number (9575145).
Almost surely, 2130221054 is an apocalyptic number.
130221054 is an abundant number, since it is smaller than the sum of its proper divisors (176183586).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130221054 is a wasteful number, since it uses less digits than its factorization.
130221054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141881 (or 141875 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 130221054 is about 11411.4439927645. The cubic root of 130221054 is about 506.8666712887.
Adding to 130221054 its reverse (450122031), we get a palindrome (580343085).
The spelling of 130221054 in words is "one hundred thirty million, two hundred twenty-one thousand, fifty-four".
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