Base | Representation |
---|---|
bin | 10010001000100101… |
… | …011001101111001111 |
3 | 1212020222211100111120 |
4 | 102020211121233033 |
5 | 304334133002221 |
6 | 12540043052023 |
7 | 1256342650023 |
oct | 221045315717 |
9 | 55228740446 |
10 | 19471375311 |
11 | 82920a1513 |
12 | 3934b11013 |
13 | 1ab400c86b |
14 | d29ddc383 |
15 | 78e64b5c6 |
hex | 488959bcf |
19471375311 has 16 divisors (see below), whose sum is σ = 26839219200. Its totient is φ = 12543471360.
The previous prime is 19471375309. The next prime is 19471375361. The reversal of 19471375311 is 11357317491.
It is not a de Polignac number, because 19471375311 - 21 = 19471375309 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19471375361) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92961 + ... + 218138.
It is an arithmetic number, because the mean of its divisors is an integer number (1677451200).
Almost surely, 219471375311 is an apocalyptic number.
19471375311 is a deficient number, since it is larger than the sum of its proper divisors (7367843889).
19471375311 is a wasteful number, since it uses less digits than its factorization.
19471375311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 311806.
The product of its digits is 79380, while the sum is 42.
The spelling of 19471375311 in words is "nineteen billion, four hundred seventy-one million, three hundred seventy-five thousand, three hundred eleven".
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