Base | Representation |
---|---|
bin | 11100000010001010… |
… | …010100100100110111 |
3 | 2212200210101211011021 |
4 | 130002022110210313 |
5 | 443121330444343 |
6 | 21454521322011 |
7 | 2113634354344 |
oct | 340212244467 |
9 | 85623354137 |
10 | 30101031223 |
11 | 1184727a30a |
12 | 5a00936307 |
13 | 2ab92aa0a3 |
14 | 1657a277cb |
15 | bb29340ed |
hex | 702294937 |
30101031223 has 4 divisors (see below), whose sum is σ = 30103846488. Its totient is φ = 30098215960.
The previous prime is 30101031199. The next prime is 30101031239. The reversal of 30101031223 is 32213010103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32213010103 = 73 ⋅441274111.
It is a cyclic number.
It is not a de Polignac number, because 30101031223 - 221 = 30098934071 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30101031197 and 30101031206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30101031253) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391533 + ... + 1412998.
It is an arithmetic number, because the mean of its divisors is an integer number (7525961622).
Almost surely, 230101031223 is an apocalyptic number.
30101031223 is a deficient number, since it is larger than the sum of its proper divisors (2815265).
30101031223 is a wasteful number, since it uses less digits than its factorization.
30101031223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2815264.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30101031223 its reverse (32213010103), we get a palindrome (62314041326).
It can be divided in two parts, 301010 and 31223, that added together give a palindrome (332233).
The spelling of 30101031223 in words is "thirty billion, one hundred one million, thirty-one thousand, two hundred twenty-three".
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