Base | Representation |
---|---|
bin | 10010001000100111… |
… | …110110010000000000 |
3 | 1212021001000220220000 |
4 | 102020213312100000 |
5 | 304334314011014 |
6 | 12540104520000 |
7 | 1256351260032 |
oct | 221047662000 |
9 | 55231026800 |
10 | 19472016384 |
11 | 829249a127 |
12 | 3935180000 |
13 | 1ab41a55b2 |
14 | d2a127c52 |
15 | 78e726509 |
hex | 4889f6400 |
19472016384 has 440 divisors, whose sum is σ = 62060454720. Its totient is φ = 6067961856.
The previous prime is 19472016383. The next prime is 19472016397. The reversal of 19472016384 is 48361027491.
19472016384 is a `hidden beast` number, since 1 + 9 + 4 + 7 + 2 + 0 + 1 + 638 + 4 = 666.
It is a super-3 number, since 3×194720163843 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19472016383) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112554922 + ... + 112555094.
It is an arithmetic number, because the mean of its divisors is an integer number (141046488).
Almost surely, 219472016384 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 19472016384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31030227360).
19472016384 is an abundant number, since it is smaller than the sum of its proper divisors (42588438336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19472016384 is a wasteful number, since it uses less digits than its factorization.
19472016384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 287 (or 260 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 45.
The spelling of 19472016384 in words is "nineteen billion, four hundred seventy-two million, sixteen thousand, three hundred eighty-four".
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