Base | Representation |
---|---|
bin | 10010101111110110… |
… | …010110100101111110 |
3 | 1220221220101120110120 |
4 | 102233312112211332 |
5 | 312211303132202 |
6 | 13125254315410 |
7 | 1311562166352 |
oct | 225766264576 |
9 | 56856346416 |
10 | 20130130302 |
11 | 859aa2a927 |
12 | 3a99658b66 |
13 | 1b8a63a809 |
14 | d8d6bb462 |
15 | 7cc3c30bc |
hex | 4afd9697e |
20130130302 has 64 divisors (see below), whose sum is σ = 42775216128. Its totient is φ = 6306300000.
The previous prime is 20130130289. The next prime is 20130130303. The reversal of 20130130302 is 20303103102.
It is a super-2 number, since 2×201301303022 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20130130303) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873427 + ... + 896177.
It is an arithmetic number, because the mean of its divisors is an integer number (668362752).
Almost surely, 220130130302 is an apocalyptic number.
20130130302 is an abundant number, since it is smaller than the sum of its proper divisors (22645085826).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20130130302 is a wasteful number, since it uses less digits than its factorization.
20130130302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22925.
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 20130130302 its reverse (20303103102), we get a palindrome (40433233404).
The spelling of 20130130302 in words is "twenty billion, one hundred thirty million, one hundred thirty thousand, three hundred two".
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