| Base | Representation |
|---|---|
| bin | 101010010110110… |
| … | …0111001011011100 |
| 3 | 10200001022122000100 |
| 4 | 1110231213023130 |
| 5 | 10402314234400 |
| 6 | 353010101100 |
| 7 | 50135236614 |
| oct | 12455471334 |
| 9 | 3601278010 |
| 10 | 1421243100 |
| 11 | 66a288a82 |
| 12 | 337b7a790 |
| 13 | 1985a8964 |
| 14 | d6a81a44 |
| 15 | 84b8e100 |
| hex | 54b672dc |
1421243100 has 108 divisors (see below), whose sum is σ = 4463995536. Its totient is φ = 378216960.
The previous prime is 1421243093. The next prime is 1421243119. The reversal of 1421243100 is 13421241.
1421243100 is a `hidden beast` number, since 1 + 421 + 243 + 1 + 0 + 0 = 666.
It is a super-2 number, since 2×14212431002 = 4039863898595220000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
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 35 ways as a sum of consecutive naturals, for example, 532369 + ... + 535031.
It is an arithmetic number, because the mean of its divisors is an integer number (41333292).
Almost surely, 21421243100 is an apocalyptic number.
1421243100 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 1421243100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2231997768).
1421243100 is an abundant number, since it is smaller than the sum of its proper divisors (3042752436).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1421243100 is a wasteful number, since it uses less digits than its factorization.
1421243100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3276 (or 3266 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 1421243100 is about 37699.3779789534. The cubic root of 1421243100 is about 1124.3187579285.
Adding to 1421243100 its reverse (13421241), we get a palindrome (1434664341).
The spelling of 1421243100 in words is "one billion, four hundred twenty-one million, two hundred forty-three thousand, one hundred".
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