| Base | Representation |
|---|---|
| bin | 111011101011010… |
| … | …100100010110000 |
| 3 | 2120202221211202220 |
| 4 | 323223110202300 |
| 5 | 4022302241310 |
| 6 | 243203241040 |
| 7 | 33545106441 |
| oct | 7353244260 |
| 9 | 2522854686 |
| 10 | 1001212080 |
| 11 | 474181500 |
| 12 | 23b379180 |
| 13 | 12c572aab |
| 14 | 96d852c8 |
| 15 | 5cd70670 |
| hex | 3bad48b0 |
1001212080 has 240 divisors, whose sum is σ = 3562272000. Its totient is φ = 232010240.
The previous prime is 1001212067. The next prime is 1001212081. The reversal of 1001212080 is 802121001.
1001212080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (240).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1001212081) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 667171 + ... + 668669.
It is an arithmetic number, because the mean of its divisors is an integer number (14842800).
Almost surely, 21001212080 is an apocalyptic number.
1001212080 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 1001212080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781136000).
1001212080 is an abundant number, since it is smaller than the sum of its proper divisors (2561059920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1001212080 is a wasteful number, since it uses less digits than its factorization.
1001212080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1560 (or 1543 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
The square root of 1001212080 is about 31641.9354654547. The cubic root of 1001212080 is about 1000.4038635390.
Adding to 1001212080 its reverse (802121001), we get a palindrome (1803333081).
It can be divided in two parts, 100121 and 2080, that added together give a palindrome (102201).
The spelling of 1001212080 in words is "one billion, one million, two hundred twelve thousand, eighty".
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