Base | Representation |
---|---|
bin | 100101000101100… |
… | …1010011000100100 |
3 | 10012201122002220002 |
4 | 1022023022120210 |
5 | 10022034040400 |
6 | 323252400432 |
7 | 42560365151 |
oct | 11213123044 |
9 | 3181562802 |
10 | 1244440100 |
11 | 5894aa2a2 |
12 | 2a8916118 |
13 | 16aa83cb7 |
14 | bb3bb228 |
15 | 743b7ed5 |
hex | 4a2ca624 |
1244440100 has 36 divisors (see below), whose sum is σ = 2702160384. Its totient is φ = 497458080.
The previous prime is 1244440039. The next prime is 1244440151. The reversal of 1244440100 is 10444421.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211397 + ... + 217203.
Almost surely, 21244440100 is an apocalyptic number.
1244440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1244440100 is an abundant number, since it is smaller than the sum of its proper divisors (1457720284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1244440100 is a wasteful number, since it uses less digits than its factorization.
1244440100 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7964 (or 7957 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 20.
The square root of 1244440100 is about 35276.6225707621. The cubic root of 1244440100 is about 1075.6178456605.
Adding to 1244440100 its reverse (10444421), we get a palindrome (1254884521).
The spelling of 1244440100 in words is "one billion, two hundred forty-four million, four hundred forty thousand, one hundred".
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