Base | Representation |
---|---|
bin | 10001111101010110… |
… | …100100101000000101 |
3 | 1211202212020202121201 |
4 | 101331112210220011 |
5 | 303442413011443 |
6 | 12505232142501 |
7 | 1251564162136 |
oct | 217526445005 |
9 | 54685222551 |
10 | 19282938373 |
11 | 81a5797006 |
12 | 38a1997a31 |
13 | 1a83c7370a |
14 | d0cd89c8d |
15 | 77cd2834d |
hex | 47d5a4a05 |
19282938373 has 4 divisors (see below), whose sum is σ = 19285673260. Its totient is φ = 19280203488.
The previous prime is 19282938307. The next prime is 19282938379. The reversal of 19282938373 is 37383928291.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37383928291 = 19391 ⋅1927901.
It can be written as a sum of positive squares in 2 ways, for example, as 11447502049 + 7835436324 = 106993^2 + 88518^2 .
It is a cyclic number.
It is not a de Polignac number, because 19282938373 - 225 = 19249383941 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19282938379) 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, 1356840 + ... + 1370977.
It is an arithmetic number, because the mean of its divisors is an integer number (4821418315).
Almost surely, 219282938373 is an apocalyptic number.
It is an amenable number.
19282938373 is a deficient number, since it is larger than the sum of its proper divisors (2734887).
19282938373 is an equidigital number, since it uses as much as digits as its factorization.
19282938373 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2734886.
The product of its digits is 3919104, while the sum is 55.
The spelling of 19282938373 in words is "nineteen billion, two hundred eighty-two million, nine hundred thirty-eight thousand, three hundred seventy-three".
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