Base | Representation |
---|---|
bin | 1111011111111… |
… | …11011011110110 |
3 | 100001122202102200 |
4 | 13233333123312 |
5 | 231241133420 |
6 | 20522445330 |
7 | 3136106202 |
oct | 757773366 |
9 | 301582380 |
10 | 130021110 |
11 | 6743686a |
12 | 37663846 |
13 | 20c2528b |
14 | 133a7b02 |
15 | b634b90 |
hex | 7bff6f6 |
130021110 has 24 divisors (see below), whose sum is σ = 338055120. Its totient is φ = 34672272.
The previous prime is 130021109. The next prime is 130021153. The reversal of 130021110 is 11120031.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 130021092 and 130021101.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722250 + ... + 722429.
It is an arithmetic number, because the mean of its divisors is an integer number (14085630).
Almost surely, 2130021110 is an apocalyptic number.
130021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130021110 is an abundant number, since it is smaller than the sum of its proper divisors (208034010).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130021110 is a wasteful number, since it uses less digits than its factorization.
130021110 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1444692 (or 1444689 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 9.
The square root of 130021110 is about 11402.6799481525. The cubic root of 130021110 is about 506.6071206760.
Adding to 130021110 its reverse (11120031), we get a palindrome (141141141).
The spelling of 130021110 in words is "one hundred thirty million, twenty-one thousand, one hundred ten".
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