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1530269 = 13532221
BaseRepresentation
bin101110101100110011101
32212202010122
411311212131
5342432034
652444325
716002266
oct5654635
92782118
101530269
11955794
126196a5
134176b0
142bb96d
1520362e
hex17599d

1530269 has 8 divisors (see below), whose sum is σ = 1679832. Its totient is φ = 1385280.

The previous prime is 1530233. The next prime is 1530281. The reversal of 1530269 is 9620351.

It can be written as a sum of positive squares in 4 ways, for example, as 235225 + 1295044 = 485^2 + 1138^2 .

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

It is not a de Polignac number, because 1530269 - 216 = 1464733 is a prime.

It is a super-2 number, since 2×15302692 = 4683446424722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (209979).

21530269 is an apocalyptic number.

It is an amenable number.

1530269 is a deficient number, since it is larger than the sum of its proper divisors (149563).

1530269 is a wasteful number, since it uses less digits than its factorization.

1530269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1530269 is about 1237.0404197115. The cubic root of 1530269 is about 115.2362879589.

The spelling of 1530269 in words is "one million, five hundred thirty thousand, two hundred sixty-nine".

Divisors: 1 13 53 689 2221 28873 117713 1530269