Base | Representation |
---|---|
bin | 111100110111001… |
… | …101010100111000 |
3 | 2122011101112100220 |
4 | 330313031110320 |
5 | 4042400333324 |
6 | 245153500040 |
7 | 34206152601 |
oct | 7467152470 |
9 | 2564345326 |
10 | 1021105464 |
11 | 484429715 |
12 | 245b71620 |
13 | 133719822 |
14 | 99882da8 |
15 | 5e99eb79 |
hex | 3cdcd538 |
1021105464 has 16 divisors (see below), whose sum is σ = 2552763720. Its totient is φ = 340368480.
The previous prime is 1021105433. The next prime is 1021105469. The reversal of 1021105464 is 4645011201.
It is a happy number.
It is a super-2 number, since 2×10211054642 = 2085312737221310592, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 42546061 = 1021105464 / (1 + 0 + 2 + 1 + 1 + 0 + 5 + 4 + 6 + 4).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1021105469) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21273007 + ... + 21273054.
Almost surely, 21021105464 is an apocalyptic number.
It is an amenable number.
1021105464 is an abundant number, since it is smaller than the sum of its proper divisors (1531658256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1021105464 is a wasteful number, since it uses less digits than its factorization.
1021105464 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42546070 (or 42546066 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
The square root of 1021105464 is about 31954.7408689227. The cubic root of 1021105464 is about 1006.9862335474.
Adding to 1021105464 its reverse (4645011201), we get a palindrome (5666116665).
The spelling of 1021105464 in words is "one billion, twenty-one million, one hundred five thousand, four hundred sixty-four".
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