Base | Representation |
---|---|
bin | 100101000001000… |
… | …1111110110111110 |
3 | 10012120020101022100 |
4 | 1022002033312332 |
5 | 10020434300410 |
6 | 323130325530 |
7 | 42531463134 |
oct | 11202176676 |
9 | 3176211270 |
10 | 1242103230 |
11 | 5881535a5 |
12 | 2a7b898a6 |
13 | 16a446434 |
14 | bad6d754 |
15 | 740a58c0 |
hex | 4a08fdbe |
1242103230 has 48 divisors (see below), whose sum is σ = 3290414400. Its totient is φ = 324976704.
The previous prime is 1242103229. The next prime is 1242103231. The reversal of 1242103230 is 323012421.
1242103230 is a `hidden beast` number, since 12 + 421 + 0 + 3 + 230 = 666.
It is an interprime number because it is at equal distance from previous prime (1242103229) and next prime (1242103231).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1242103231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125430 + ... + 134969.
It is an arithmetic number, because the mean of its divisors is an integer number (68550300).
Almost surely, 21242103230 is an apocalyptic number.
1242103230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1242103230 is an abundant number, since it is smaller than the sum of its proper divisors (2048311170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1242103230 is a wasteful number, since it uses less digits than its factorization.
1242103230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260465 (or 260462 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 1242103230 is about 35243.4849298420. The cubic root of 1242103230 is about 1074.9441413196.
Adding to 1242103230 its reverse (323012421), we get a palindrome (1565115651).
The spelling of 1242103230 in words is "one billion, two hundred forty-two million, one hundred three thousand, two hundred thirty".
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