Base | Representation |
---|---|
bin | 10001111001100010111… |
… | …001111110100001100010 |
3 | 11100120220012122201211120 |
4 | 101321202321332201202 |
5 | 130123040110342010 |
6 | 2341021405353110 |
7 | 154603020411210 |
oct | 21714271764142 |
9 | 4316805581746 |
10 | 1230020012130 |
11 | 434715259578 |
12 | 17a477268796 |
13 | 8bcb4b688b0 |
14 | 437674a1cb0 |
15 | 21ee0468e70 |
hex | 11e62e7e862 |
1230020012130 has 64 divisors (see below), whose sum is σ = 3633289890048. Its totient is φ = 259520705280.
The previous prime is 1230020012119. The next prime is 1230020012131. The reversal of 1230020012130 is 312100200321.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (1230020012131) 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, 225275661 + ... + 225281120.
It is an arithmetic number, because the mean of its divisors is an integer number (56770154532).
Almost surely, 21230020012130 is an apocalyptic number.
1230020012130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1230020012130 is an abundant number, since it is smaller than the sum of its proper divisors (2403269877918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230020012130 is a wasteful number, since it uses less digits than its factorization.
1230020012130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 450556811.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 1230020012130 its reverse (312100200321), we get a palindrome (1542120212451).
The spelling of 1230020012130 in words is "one trillion, two hundred thirty billion, twenty million, twelve thousand, one hundred thirty".
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