Base | Representation |
---|---|
bin | 10010010101000001… |
… | …100100111011011111 |
3 | 1212210112120001011211 |
4 | 102111001210323133 |
5 | 310301100302100 |
6 | 13012500325251 |
7 | 1264455662125 |
oct | 222501447337 |
9 | 55715501154 |
10 | 19680087775 |
11 | 8389995257 |
12 | 39929a3827 |
13 | 1b1832766a |
14 | d49a0b915 |
15 | 7a2b271ba |
hex | 495064edf |
19680087775 has 24 divisors (see below), whose sum is σ = 24512716800. Its totient is φ = 15673624800.
The previous prime is 19680087761. The next prime is 19680087803. The reversal of 19680087775 is 57778008691.
It is not a de Polignac number, because 19680087775 - 29 = 19680087263 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11187346 + ... + 11189104.
It is an arithmetic number, because the mean of its divisors is an integer number (1021363200).
Almost surely, 219680087775 is an apocalyptic number.
19680087775 is a deficient number, since it is larger than the sum of its proper divisors (4832629025).
19680087775 is a wasteful number, since it uses less digits than its factorization.
19680087775 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3519 (or 3514 counting only the distinct ones).
The product of its (nonzero) digits is 5927040, while the sum is 58.
The spelling of 19680087775 in words is "nineteen billion, six hundred eighty million, eighty-seven thousand, seven hundred seventy-five".
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