Base | Representation |
---|---|
bin | 10010111111011111… |
… | …100001010101011100 |
3 | 1221122012020102101012 |
4 | 102333133201111130 |
5 | 313231000033234 |
6 | 13211311434352 |
7 | 1321230034205 |
oct | 227737412534 |
9 | 57565212335 |
10 | 20392580444 |
11 | 8715097575 |
12 | 3b515259b8 |
13 | 1bccb1c062 |
14 | db64b85ac |
15 | 7e54660ce |
hex | 4bf7e155c |
20392580444 has 12 divisors (see below), whose sum is σ = 35926527000. Its totient is φ = 10127858448.
The previous prime is 20392580423. The next prime is 20392580447. The reversal of 20392580444 is 44408529302.
It is a super-2 number, since 2×203925804442 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20392580447) 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, 17107274 + ... + 17108465.
It is an arithmetic number, because the mean of its divisors is an integer number (2993877250).
Almost surely, 220392580444 is an apocalyptic number.
It is an amenable number.
20392580444 is a deficient number, since it is larger than the sum of its proper divisors (15533946556).
20392580444 is a wasteful number, since it uses less digits than its factorization.
20392580444 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34215892 (or 34215890 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 41.
The spelling of 20392580444 in words is "twenty billion, three hundred ninety-two million, five hundred eighty thousand, four hundred forty-four".
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