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530949 = 3176983
BaseRepresentation
bin10000001101000000101
3222222022210
42001220011
5113442244
615214033
74340646
oct2015005
9888283
10530949
11332a01
12217319
13157893
14db6cd
15a74b9
hex81a05

530949 has 4 divisors (see below), whose sum is σ = 707936. Its totient is φ = 353964.

The previous prime is 530947. The next prime is 530969. The reversal of 530949 is 949035.

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.

It is not a de Polignac number, because 530949 - 21 = 530947 is a prime.

It is a D-number.

It is a Duffinian number.

530949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530947) 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, 88489 + ... + 88494.

It is an arithmetic number, because the mean of its divisors is an integer number (176984).

2530949 is an apocalyptic number.

It is an amenable number.

530949 is a deficient number, since it is larger than the sum of its proper divisors (176987).

530949 is a wasteful number, since it uses less digits than its factorization.

530949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176986.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 530949 is about 728.6624733030. The cubic root of 530949 is about 80.9749960927.

The spelling of 530949 in words is "five hundred thirty thousand, nine hundred forty-nine".

Divisors: 1 3 176983 530949