| Base | Representation |
|---|---|
| bin | 1110010101000… |
| … | …10001100100100 |
| 3 | 22101011220011200 |
| 4 | 13022202030210 |
| 5 | 221232431040 |
| 6 | 15532202500 |
| 7 | 2656462131 |
| oct | 712421444 |
| 9 | 271156150 |
| 10 | 120202020 |
| 11 | 6193a614 |
| 12 | 34309430 |
| 13 | 1bb97b73 |
| 14 | 11d6d588 |
| 15 | a845630 |
| hex | 72a2324 |
120202020 has 72 divisors (see below), whose sum is σ = 370091904. Its totient is φ = 31572288.
The previous prime is 120202007. The next prime is 120202051. The reversal of 120202020 is 20202021.
It is a super-2 number, since 2×1202020202 = 28897051224160800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
120202020 is a modest number, since divided by 202020 gives 120 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 120201993 and 120202011.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7077 + ... + 17043.
Almost surely, 2120202020 is an apocalyptic number.
120202020 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 120202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185045952).
120202020 is an abundant number, since it is smaller than the sum of its proper divisors (249889884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120202020 is a wasteful number, since it uses less digits than its factorization.
120202020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10049 (or 10044 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
The square root of 120202020 is about 10963.6681817720. The cubic root of 120202020 is about 493.5190508870.
Adding to 120202020 its reverse (20202021), we get a palindrome (140404041).
Subtracting from 120202020 its reverse (20202021), we obtain a palindrome (99999999).
The spelling of 120202020 in words is "one hundred twenty million, two hundred two thousand, twenty".
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