Base | Representation |
---|---|
bin | 1111100001101… |
… | …10001100011010 |
3 | 100002002011002210 |
4 | 13300312030122 |
5 | 231320323102 |
6 | 20531335550 |
7 | 3141032130 |
oct | 760661432 |
9 | 302064083 |
10 | 130245402 |
11 | 6757a331 |
12 | 377515b6 |
13 | 20ca33b1 |
14 | 13425750 |
15 | b67b36c |
hex | 7c3631a |
130245402 has 32 divisors (see below), whose sum is σ = 305753472. Its totient is φ = 36206784.
The previous prime is 130245377. The next prime is 130245403. The reversal of 130245402 is 204542031.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (130245403) 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, 40353 + ... + 43460.
It is an arithmetic number, because the mean of its divisors is an integer number (9554796).
Almost surely, 2130245402 is an apocalyptic number.
130245402 is an abundant number, since it is smaller than the sum of its proper divisors (175508070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130245402 is a wasteful number, since it uses less digits than its factorization.
130245402 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83862.
The product of its (nonzero) digits is 960, while the sum is 21.
The square root of 130245402 is about 11412.5107666981. The cubic root of 130245402 is about 506.8982596795.
Adding to 130245402 its reverse (204542031), we get a palindrome (334787433).
The spelling of 130245402 in words is "one hundred thirty million, two hundred forty-five thousand, four hundred two".
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