Base | Representation |
---|---|
bin | 11100010101111000… |
… | …000001001110001001 |
3 | 2220112211202110222210 |
4 | 130111320001032021 |
5 | 444311013341143 |
6 | 21551414335333 |
7 | 2125061561613 |
oct | 342570011611 |
9 | 86484673883 |
10 | 30431777673 |
11 | 119a6a43a90 |
12 | 5a9365a549 |
13 | 2b3c98184b |
14 | 1689921db3 |
15 | bd19b8033 |
hex | 715e01389 |
30431777673 has 32 divisors (see below), whose sum is σ = 46885675392. Its totient is φ = 17352115200.
The previous prime is 30431777653. The next prime is 30431777681. The reversal of 30431777673 is 37677713403.
It is not a de Polignac number, because 30431777673 - 218 = 30431515529 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30431777653) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1776015 + ... + 1793067.
It is an arithmetic number, because the mean of its divisors is an integer number (1465177356).
Almost surely, 230431777673 is an apocalyptic number.
30431777673 is a gapful number since it is divisible by the number (33) formed by its first and last digit.
It is an amenable number.
30431777673 is a deficient number, since it is larger than the sum of its proper divisors (16453897719).
30431777673 is a wasteful number, since it uses less digits than its factorization.
30431777673 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20265.
The product of its (nonzero) digits is 1555848, while the sum is 48.
The spelling of 30431777673 in words is "thirty billion, four hundred thirty-one million, seven hundred seventy-seven thousand, six hundred seventy-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •