Base | Representation |
---|---|
bin | 11010001101011011000000 |
3 | 110221001212010 |
4 | 122031123000 |
5 | 3224330340 |
6 | 403132520 |
7 | 112254153 |
oct | 32153300 |
9 | 13831763 |
10 | 6870720 |
11 | 397308a |
12 | 2374140 |
13 | 156741c |
14 | cabc9a |
15 | 90ab80 |
hex | 68d6c0 |
6870720 has 112 divisors (see below), whose sum is σ = 23152608. Its totient is φ = 1720320.
The previous prime is 6870713. The next prime is 6870733. The reversal of 6870720 is 270786.
6870720 = T431 + T432 + ... + T494.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16110 + ... + 16530.
Almost surely, 26870720 is an apocalyptic number.
6870720 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 6870720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11576304).
6870720 is an abundant number, since it is smaller than the sum of its proper divisors (16281888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6870720 is a wasteful number, since it uses less digits than its factorization.
6870720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 458 (or 448 counting only the distinct ones).
The product of its (nonzero) digits is 4704, while the sum is 30.
The square root of 6870720 is about 2621.2058293846. The cubic root of 6870720 is about 190.1081563342.
The spelling of 6870720 in words is "six million, eight hundred seventy thousand, seven hundred twenty".
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