Base | Representation |
---|---|
bin | 111111100100001101… |
… | …000111010011011000 |
3 | 20112011200100101120000 |
4 | 333210031013103120 |
5 | 2104240301334342 |
6 | 51204405533000 |
7 | 4634243136501 |
oct | 774415072330 |
9 | 215150311500 |
10 | 68253152472 |
11 | 26a4514172a |
12 | 11289a14160 |
13 | 658957786b |
14 | 3436a17ba8 |
15 | 1b970a644c |
hex | fe43474d8 |
68253152472 has 80 divisors (see below), whose sum is σ = 191250833400. Its totient is φ = 22741672320.
The previous prime is 68253152467. The next prime is 68253152483. The reversal of 68253152472 is 27425135286.
68253152472 is a `hidden beast` number, since 6 + 8 + 2 + 53 + 1 + 524 + 72 = 666.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1650772 + ... + 1691612.
Almost surely, 268253152472 is an apocalyptic number.
It is an amenable number.
68253152472 is an abundant number, since it is smaller than the sum of its proper divisors (122997680928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68253152472 is a wasteful number, since it uses less digits than its factorization.
68253152472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43438 (or 43425 counting only the distinct ones).
The product of its digits is 806400, while the sum is 45.
The spelling of 68253152472 in words is "sixty-eight billion, two hundred fifty-three million, one hundred fifty-two thousand, four hundred seventy-two".
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