Base | Representation |
---|---|
bin | 10001110000001110011… |
… | …100101000110011000110 |
3 | 11022122001210212221100220 |
4 | 101300032130220303012 |
5 | 124442041323201410 |
6 | 2332244414445210 |
7 | 154100030151021 |
oct | 21601634506306 |
9 | 4278053787326 |
10 | 1220013100230 |
11 | 43044a653551 |
12 | 178543b03806 |
13 | 8b07b8cb352 |
14 | 430984601b8 |
15 | 21b06b93070 |
hex | 11c0e728cc6 |
1220013100230 has 16 divisors (see below), whose sum is σ = 2928031440624. Its totient is φ = 325336826720.
The previous prime is 1220013100223. The next prime is 1220013100349. The reversal of 1220013100230 is 320013100221.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20333551641 + ... + 20333551700.
It is an arithmetic number, because the mean of its divisors is an integer number (183001965039).
Almost surely, 21220013100230 is an apocalyptic number.
1220013100230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1220013100230 is an abundant number, since it is smaller than the sum of its proper divisors (1708018340394).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220013100230 is a wasteful number, since it uses less digits than its factorization.
1220013100230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40667103351.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 1220013100230 its reverse (320013100221), we get a palindrome (1540026200451).
Subtracting from 1220013100230 its reverse (320013100221), we obtain a palindrome (900000000009).
The spelling of 1220013100230 in words is "one trillion, two hundred twenty billion, thirteen million, one hundred thousand, two hundred thirty".
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