| Base | Representation |
|---|---|
| bin | 1111000010111… |
| … | …01101111101100 |
| 3 | 22210111021211021 |
| 4 | 13201131233230 |
| 5 | 224302304400 |
| 6 | 20305103524 |
| 7 | 3061536136 |
| oct | 741355754 |
| 9 | 283437737 |
| 10 | 126213100 |
| 11 | 65275852 |
| 12 | 36327ba4 |
| 13 | 201c0c10 |
| 14 | 12a96056 |
| 15 | b13171a |
| hex | 785dbec |
126213100 has 72 divisors (see below), whose sum is σ = 312355008. Its totient is φ = 43852800.
The previous prime is 126213097. The next prime is 126213103. The reversal of 126213100 is 1312621.
It is an interprime number because it is at equal distance from previous prime (126213097) and next prime (126213103).
It is a super-2 number, since 2×1262131002 = 31859493223220000, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126213103) 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, 19245 + ... + 24955.
It is an arithmetic number, because the mean of its divisors is an integer number (4338264).
Almost surely, 2126213100 is an apocalyptic number.
126213100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 126213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156177504).
126213100 is an abundant number, since it is smaller than the sum of its proper divisors (186141908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
126213100 is a wasteful number, since it uses less digits than its factorization.
126213100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5755 (or 5748 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 126213100 is about 11234.4603786742. The cubic root of 126213100 is about 501.6122622994.
Adding to 126213100 its reverse (1312621), we get a palindrome (127525721).
The spelling of 126213100 in words is "one hundred twenty-six million, two hundred thirteen thousand, one hundred".
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