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BaseRepresentation
bin11000111010011101111100
3110021210202200
4120322131330
53132442230
6351551500
7106340433
oct30723574
913253680
106530940
113760879
12222b590
131478880
14c2011a
15890160
hex63a77c

6530940 has 72 divisors (see below), whose sum is σ = 21342048. Its totient is φ = 1607040.

The previous prime is 6530933. The next prime is 6530947. The reversal of 6530940 is 490356.

It is a happy number.

6530940 is a `hidden beast` number, since 653 + 0 + 9 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6530933) and next prime (6530947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 945 + ... + 3735.

Almost surely, 26530940 is an apocalyptic number.

6530940 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 6530940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10671024).

6530940 is an abundant number, since it is smaller than the sum of its proper divisors (14811108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6530940 is a wasteful number, since it uses less digits than its factorization.

6530940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6530940 is about 2555.5703864304. The cubic root of 6530940 is about 186.9212017992.

The spelling of 6530940 in words is "six million, five hundred thirty thousand, nine hundred forty".