Base | Representation |
---|---|
bin | 111001010011001… |
… | …0010110000101101 |
3 | 11221222210021112202 |
4 | 1302212102300231 |
5 | 12414144002231 |
6 | 514440511245 |
7 | 65434115114 |
oct | 16246226055 |
9 | 4858707482 |
10 | 1922640941 |
11 | 8a730a661 |
12 | 457a7b525 |
13 | 248430080 |
14 | 1434bcc7b |
15 | b3bd15cb |
hex | 72992c2d |
1922640941 has 4 divisors (see below), whose sum is σ = 2070536412. Its totient is φ = 1774745472.
The previous prime is 1922640917. The next prime is 1922640943. The reversal of 1922640941 is 1490462291.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 804006025 + 1118634916 = 28355^2 + 33446^2 .
It is a cyclic number.
It is not a de Polignac number, because 1922640941 - 218 = 1922378797 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1922640895 and 1922640904.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1922640943) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73947716 + ... + 73947741.
It is an arithmetic number, because the mean of its divisors is an integer number (517634103).
Almost surely, 21922640941 is an apocalyptic number.
It is an amenable number.
1922640941 is a deficient number, since it is larger than the sum of its proper divisors (147895471).
1922640941 is a wasteful number, since it uses less digits than its factorization.
1922640941 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 147895470.
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 1922640941 is about 43847.9297230781. The cubic root of 1922640941 is about 1243.4626036428.
The spelling of 1922640941 in words is "one billion, nine hundred twenty-two million, six hundred forty thousand, nine hundred forty-one".
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