Base | Representation |
---|---|
bin | 111111001110010… |
… | …0010011001100000 |
3 | 12110211210210122002 |
4 | 1332130202121200 |
5 | 13321040111034 |
6 | 550301103132 |
7 | 103366455140 |
oct | 17634423140 |
9 | 5424723562 |
10 | 2121410144 |
11 | 999531927 |
12 | 4b2557aa8 |
13 | 27a676099 |
14 | 161a60920 |
15 | c6395e7e |
hex | 7e722660 |
2121410144 has 48 divisors (see below), whose sum is σ = 5053956768. Its totient is φ = 855693312.
The previous prime is 2121410143. The next prime is 2121410231. The reversal of 2121410144 is 4410141212.
It is a super-2 number, since 2×21214101442 = 9000761998132201472, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2121410143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274739 + ... + 282354.
It is an arithmetic number, because the mean of its divisors is an integer number (105290766).
Almost surely, 22121410144 is an apocalyptic number.
It is an amenable number.
2121410144 is an abundant number, since it is smaller than the sum of its proper divisors (2932546624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2121410144 is a wasteful number, since it uses less digits than its factorization.
2121410144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 557127 (or 557119 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 20.
The square root of 2121410144 is about 46058.7683725911. The cubic root of 2121410144 is about 1284.9164240839.
Adding to 2121410144 its reverse (4410141212), we get a palindrome (6531551356).
The spelling of 2121410144 in words is "two billion, one hundred twenty-one million, four hundred ten thousand, one hundred forty-four".
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