Base | Representation |
---|---|
bin | 100100011000100001… |
… | …0001101000110110010 |
3 | 21110200011021112201010 |
4 | 1020301002031012302 |
5 | 2240003302313012 |
6 | 55520545251350 |
7 | 5434120442643 |
oct | 1106102150662 |
9 | 243604245633 |
10 | 78132072882 |
11 | 30154577866 |
12 | 13186333b56 |
13 | 74a21508b6 |
14 | 3ad2a5d6ca |
15 | 20744e8c3c |
hex | 123108d1b2 |
78132072882 has 16 divisors (see below), whose sum is σ = 156269463840. Its totient is φ = 26043137952.
The previous prime is 78132072877. The next prime is 78132072883. The reversal of 78132072882 is 28827023187.
It is a super-2 number, since 2×781320728822 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (78132072883) 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, 15907 + ... + 395622.
It is an arithmetic number, because the mean of its divisors is an integer number (9766841490).
Almost surely, 278132072882 is an apocalyptic number.
78132072882 is an abundant number, since it is smaller than the sum of its proper divisors (78137390958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78132072882 is a wasteful number, since it uses less digits than its factorization.
78132072882 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 443177.
The product of its (nonzero) digits is 602112, while the sum is 48.
The spelling of 78132072882 in words is "seventy-eight billion, one hundred thirty-two million, seventy-two thousand, eight hundred eighty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •