Base | Representation |
---|---|
bin | 111100010101010… |
… | …010000111110010 |
3 | 2121112122201010010 |
4 | 330111102013302 |
5 | 4033111242320 |
6 | 244235115350 |
7 | 34040443002 |
oct | 7425220762 |
9 | 2545581103 |
10 | 1012212210 |
11 | 47a405019 |
12 | 242ba2b56 |
13 | 131924949 |
14 | 9860a002 |
15 | 5dce4ae0 |
hex | 3c5521f2 |
1012212210 has 64 divisors (see below), whose sum is σ = 2516189184. Its totient is φ = 260433600.
The previous prime is 1012212191. The next prime is 1012212211. The reversal of 1012212210 is 122122101.
1012212210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1012212211) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95055 + ... + 105165.
It is an arithmetic number, because the mean of its divisors is an integer number (39315456).
Almost surely, 21012212210 is an apocalyptic number.
1012212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1012212210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258094592).
1012212210 is an abundant number, since it is smaller than the sum of its proper divisors (1503976974).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1012212210 is a wasteful number, since it uses less digits than its factorization.
1012212210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10239.
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 1012212210 is about 31815.2826484380. The cubic root of 1012212210 is about 1004.0542772887.
Adding to 1012212210 its reverse (122122101), we get a palindrome (1134334311).
The spelling of 1012212210 in words is "one billion, twelve million, two hundred twelve thousand, two hundred ten".
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