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1530142 = 21097019
BaseRepresentation
bin101110101100100011110
32212201221221
411311210132
5342431032
652443554
716002025
oct5654436
92781857
101530142
11955689
126195ba
13417613
142bb8bc
15203597
hex17591e

1530142 has 8 divisors (see below), whose sum is σ = 2316600. Its totient is φ = 757944.

The previous prime is 1530131. The next prime is 1530143. The reversal of 1530142 is 2410351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530143) 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, 3292 + ... + 3727.

It is an arithmetic number, because the mean of its divisors is an integer number (289575).

21530142 is an apocalyptic number.

1530142 is a deficient number, since it is larger than the sum of its proper divisors (786458).

1530142 is a wasteful number, since it uses less digits than its factorization.

1530142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1530142 is about 1236.9890864515. The cubic root of 1530142 is about 115.2330999761.

Adding to 1530142 its reverse (2410351), we get a palindrome (3940493).

The spelling of 1530142 in words is "one million, five hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 109 218 7019 14038 765071 1530142