Base | Representation |
---|---|
bin | 11100101001110001… |
… | …11111001100110110 |
3 | 1110201001120200221010 |
4 | 32110320333030312 |
5 | 223001003300130 |
6 | 11022232133050 |
7 | 1053126140652 |
oct | 162470771466 |
9 | 43631520833 |
10 | 15382868790 |
11 | 6584257003 |
12 | 2b93837186 |
13 | 15b1c6cc33 |
14 | a5d009a62 |
15 | 6007420b0 |
hex | 394e3f336 |
15382868790 has 64 divisors (see below), whose sum is σ = 37454731776. Its totient is φ = 4042651392.
The previous prime is 15382868789. The next prime is 15382868801. The reversal of 15382868790 is 9786828351.
It is a happy number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 15382868790.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4043029 + ... + 4046831.
It is an arithmetic number, because the mean of its divisors is an integer number (585230184).
Almost surely, 215382868790 is an apocalyptic number.
15382868790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 15382868790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18727365888).
15382868790 is an abundant number, since it is smaller than the sum of its proper divisors (22071862986).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15382868790 is a wasteful number, since it uses less digits than its factorization.
15382868790 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5733.
The product of its (nonzero) digits is 5806080, while the sum is 57.
The spelling of 15382868790 in words is "fifteen billion, three hundred eighty-two million, eight hundred sixty-eight thousand, seven hundred ninety".
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