Base | Representation |
---|---|
bin | 10100000101110100… |
… | …111111100101010010 |
3 | 2001200102200100202120 |
4 | 110011310333211102 |
5 | 323140042130412 |
6 | 13524343555110 |
7 | 1362406124526 |
oct | 240564774522 |
9 | 61612610676 |
10 | 21572614482 |
11 | 91701a6611 |
12 | 422075ba96 |
13 | 205a442753 |
14 | 10890cbd86 |
15 | 863d5ab8c |
hex | 505d3f952 |
21572614482 has 16 divisors (see below), whose sum is σ = 44632995840. Its totient is φ = 6942910352.
The previous prime is 21572614417. The next prime is 21572614499. The reversal of 21572614482 is 28441627512.
21572614482 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a super-4 number, since 4×215726144824 (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61990098 + ... + 61990445.
It is an arithmetic number, because the mean of its divisors is an integer number (2789562240).
Almost surely, 221572614482 is an apocalyptic number.
21572614482 is an abundant number, since it is smaller than the sum of its proper divisors (23060381358).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21572614482 is a wasteful number, since it uses less digits than its factorization.
21572614482 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123980577.
The product of its digits is 215040, while the sum is 42.
The spelling of 21572614482 in words is "twenty-one billion, five hundred seventy-two million, six hundred fourteen thousand, four hundred eighty-two".
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