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6530430 = 235217681
BaseRepresentation
bin11000111010010101111110
3110021210001210
4120322111332
53132433210
6351545250
7106336104
oct30722576
913253053
106530430
113760455
12222b226
13147857a
14c1dc74
1588ee20
hex63a57e

6530430 has 16 divisors (see below), whose sum is σ = 15673104. Its totient is φ = 1741440.

The previous prime is 6530417. The next prime is 6530437. The reversal of 6530430 is 340356.

It is a junction number, because it is equal to n+sod(n) for n = 6530397 and 6530406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108811 + ... + 108870.

It is an arithmetic number, because the mean of its divisors is an integer number (979569).

Almost surely, 26530430 is an apocalyptic number.

6530430 is an abundant number, since it is smaller than the sum of its proper divisors (9142674).

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

6530430 is a wasteful number, since it uses less digits than its factorization.

6530430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217691.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 6530430 is about 2555.4706024527. The cubic root of 6530430 is about 186.9163361242.

Adding to 6530430 its reverse (340356), we get a palindrome (6870786).

The spelling of 6530430 in words is "six million, five hundred thirty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 217681 435362 653043 1088405 1306086 2176810 3265215 6530430