Base | Representation |
---|---|
bin | 10001100111010011010… |
… | …100010111100101001100 |
3 | 11021201100000202001001012 |
4 | 101213103110113211030 |
5 | 124312430333022340 |
6 | 2324021524104352 |
7 | 153310416643256 |
oct | 21472324274514 |
9 | 4251300661035 |
10 | 1210431142220 |
11 | 427382907693 |
12 | 17670ab350b8 |
13 | 8a1b26cb601 |
14 | 42829a3acd6 |
15 | 2174585e565 |
hex | 119d351794c |
1210431142220 has 48 divisors (see below), whose sum is σ = 2547690969600. Its totient is φ = 483071709120.
The previous prime is 1210431142213. The next prime is 1210431142231. The reversal of 1210431142220 is 222411340121.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15612311 + ... + 15689649.
It is an arithmetic number, because the mean of its divisors is an integer number (53076895200).
Almost surely, 21210431142220 is an apocalyptic number.
1210431142220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1210431142220 is an abundant number, since it is smaller than the sum of its proper divisors (1337259827380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210431142220 is a wasteful number, since it uses less digits than its factorization.
1210431142220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79118 (or 79116 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 23.
Adding to 1210431142220 its reverse (222411340121), we get a palindrome (1432842482341).
The spelling of 1210431142220 in words is "one trillion, two hundred ten billion, four hundred thirty-one million, one hundred forty-two thousand, two hundred twenty".
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