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6330240 = 273257157
BaseRepresentation
bin11000001001011110000000
3102220121110100
4120021132000
53110031430
6343402400
7104543340
oct30113600
912817410
106330240
113634004
122153400
131408407
14baad20
15850960
hex609780

6330240 has 192 divisors, whose sum is σ = 25140960. Its totient is φ = 1437696.

The previous prime is 6330229. The next prime is 6330253. The reversal of 6330240 is 420336.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40242 + ... + 40398.

Almost surely, 26330240 is an apocalyptic number.

6330240 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 6330240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12570480).

6330240 is an abundant number, since it is smaller than the sum of its proper divisors (18810720).

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

6330240 is a wasteful number, since it uses less digits than its factorization.

6330240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 6330240 is about 2515.9968203478. The cubic root of 6330240 is about 184.9865098515.

Adding to 6330240 its reverse (420336), we get a palindrome (6750576).

It can be divided in two parts, 63 and 30240, that added together give a palindrome (30303).

The spelling of 6330240 in words is "six million, three hundred thirty thousand, two hundred forty".