Base | Representation |
---|---|
bin | 11010111111000110… |
… | …011001111010101110 |
3 | 2202210101022210212122 |
4 | 122333012121322232 |
5 | 433320314243204 |
6 | 21151130432542 |
7 | 2044023231050 |
oct | 327706317256 |
9 | 82711283778 |
10 | 28975931054 |
11 | 1131a180964 |
12 | 5747b92752 |
13 | 296a17b745 |
14 | 158c4338d0 |
15 | b48c910be |
hex | 6bf199eae |
28975931054 has 16 divisors (see below), whose sum is σ = 49682364768. Its totient is φ = 12415921152.
The previous prime is 28975931041. The next prime is 28975931059. The reversal of 28975931054 is 45013957982.
It is a junction number, because it is equal to n+sod(n) for n = 28975930987 and 28975931005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28975931059) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116387 + ... + 267390.
It is an arithmetic number, because the mean of its divisors is an integer number (3105147798).
Almost surely, 228975931054 is an apocalyptic number.
28975931054 is a deficient number, since it is larger than the sum of its proper divisors (20706433714).
28975931054 is a wasteful number, since it uses less digits than its factorization.
28975931054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 389179.
The product of its (nonzero) digits is 2721600, while the sum is 53.
The spelling of 28975931054 in words is "twenty-eight billion, nine hundred seventy-five million, nine hundred thirty-one thousand, fifty-four".
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