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1530413 = 4335591
BaseRepresentation
bin101110101101000101101
32212202022222
411311220231
5342433123
652445125
716002563
oct5655055
92782288
101530413
11955905
126197a5
13417791
142bba33
152036c8
hex175a2d

1530413 has 4 divisors (see below), whose sum is σ = 1566048. Its totient is φ = 1494780.

The previous prime is 1530409. The next prime is 1530457. The reversal of 1530413 is 3140351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3140351 = 23136537.

It is a cyclic number.

It is not a de Polignac number, because 1530413 - 22 = 1530409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1530391 and 1530400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17753 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (391512).

21530413 is an apocalyptic number.

It is an amenable number.

1530413 is a deficient number, since it is larger than the sum of its proper divisors (35635).

1530413 is an equidigital number, since it uses as much as digits as its factorization.

1530413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35634.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1530413 is about 1237.0986217760. The cubic root of 1530413 is about 115.2399024661.

Adding to 1530413 its reverse (3140351), we get a palindrome (4670764).

The spelling of 1530413 in words is "one million, five hundred thirty thousand, four hundred thirteen".

Divisors: 1 43 35591 1530413