Base | Representation |
---|---|
bin | 1111010001010111… |
… | …11111110100111000 |
3 | 210011101111221212000 |
4 | 13220223333310320 |
5 | 113242344040112 |
6 | 3433321021000 |
7 | 410113530552 |
oct | 75053776470 |
9 | 23141457760 |
10 | 8198815032 |
11 | 35280210a1 |
12 | 1709924760 |
13 | a087a3c55 |
14 | 57ac5c4d2 |
15 | 32ebbd7dc |
hex | 1e8affd38 |
8198815032 has 64 divisors (see below), whose sum is σ = 23048928000. Its totient is φ = 2700005472.
The previous prime is 8198815021. The next prime is 8198815033. The reversal of 8198815032 is 2305188918.
It is a happy number.
It is a super-2 number, since 2×81988150322 (a number of 21 digits) contains 22 as substring.
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 not an unprimeable number, because it can be changed into a prime (8198815033) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210732 + ... + 246587.
It is an arithmetic number, because the mean of its divisors is an integer number (360139500).
Almost surely, 28198815032 is an apocalyptic number.
It is an amenable number.
8198815032 is an abundant number, since it is smaller than the sum of its proper divisors (14850112968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8198815032 is a wasteful number, since it uses less digits than its factorization.
8198815032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 457417 (or 457407 counting only the distinct ones).
The product of its (nonzero) digits is 138240, while the sum is 45.
The square root of 8198815032 is about 90547.3082537521. The cubic root of 8198815032 is about 2016.4325354520.
It can be divided in two parts, 81988 and 15032, that added together give a triangular number (97020 = T440).
The spelling of 8198815032 in words is "eight billion, one hundred ninety-eight million, eight hundred fifteen thousand, thirty-two".
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