Base | Representation |
---|---|
bin | 11110011111100101… |
… | …11000100110100000 |
3 | 1120020221011022002122 |
4 | 33033302320212200 |
5 | 232012001442030 |
6 | 11304254003412 |
7 | 1116456156233 |
oct | 171762704640 |
9 | 46227138078 |
10 | 16371124640 |
11 | 6a41089282 |
12 | 320a7a6568 |
13 | 170b927700 |
14 | b1437b41a |
15 | 65c3a38e5 |
hex | 3cfcb89a0 |
16371124640 has 144 divisors (see below), whose sum is σ = 42111194328. Its totient is φ = 6011486208.
The previous prime is 16371124639. The next prime is 16371124681. The reversal of 16371124640 is 4642117361.
It can be written as a sum of positive squares in 12 ways, for example, as 471932176 + 15899192464 = 21724^2 + 126092^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 16371124640.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5217152 + ... + 5220288.
Almost surely, 216371124640 is an apocalyptic number.
16371124640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 16371124640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21055597164).
16371124640 is an abundant number, since it is smaller than the sum of its proper divisors (25740069688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16371124640 is a wasteful number, since it uses less digits than its factorization.
16371124640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3371 (or 3350 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 35.
The spelling of 16371124640 in words is "sixteen billion, three hundred seventy-one million, one hundred twenty-four thousand, six hundred forty".
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