| Base | Representation |
|---|---|
| bin | 1100010100010101… |
| … | …01111111000000000 |
| 3 | 122001212121021100010 |
| 4 | 12022022233320000 |
| 5 | 102020414300030 |
| 6 | 3012112224520 |
| 7 | 322606626603 |
| oct | 61212577000 |
| 9 | 18055537303 |
| 10 | 6613040640 |
| 11 | 2893986348 |
| 12 | 134683b140 |
| 13 | 8150ac1cb |
| 14 | 46a3cc33a |
| 15 | 28a87e6b0 |
| hex | 18a2afe00 |
6613040640 has 160 divisors (see below), whose sum is σ = 21252211200. Its totient is φ = 1754210304.
The previous prime is 6613040639. The next prime is 6613040641. The reversal of 6613040640 is 460403166.
It is an interprime number because it is at equal distance from previous prime (6613040639) and next prime (6613040641).
It is a tau number, because it is divible by the number of its divisors (160).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 6613040598 and 6613040607.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6613040641) 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, 1526157 + ... + 1530483.
It is an arithmetic number, because the mean of its divisors is an integer number (132826320).
Almost surely, 26613040640 is an apocalyptic number.
6613040640 is a gapful number since it is divisible by the number (60) 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 6613040640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10626105600).
6613040640 is an abundant number, since it is smaller than the sum of its proper divisors (14639170560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6613040640 is a wasteful number, since it uses less digits than its factorization.
6613040640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4552 (or 4536 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 30.
The square root of 6613040640 is about 81320.6040312048. The cubic root of 6613040640 is about 1877.0120637252.
The spelling of 6613040640 in words is "six billion, six hundred thirteen million, forty thousand, six hundred forty".
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