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530540247 = 3540732707
BaseRepresentation
bin11111100111110…
…110011011010111
31100222022020101210
4133213312123113
52041304241442
6124351152503
716101342366
oct3747663327
91328266353
10530540247
11252526816
12129815733
1385bb8c53
14506657dd
153189c19c
hex1f9f66d7

530540247 has 8 divisors (see below), whose sum is σ = 707539456. Its totient is φ = 353617272.

The previous prime is 530540189. The next prime is 530540261. The reversal of 530540247 is 742045035.

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

It is not a de Polignac number, because 530540247 - 215 = 530507479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530541247) 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, 133 + ... + 32574.

It is an arithmetic number, because the mean of its divisors is an integer number (88442432).

Almost surely, 2530540247 is an apocalyptic number.

530540247 is a deficient number, since it is larger than the sum of its proper divisors (176999209).

530540247 is a wasteful number, since it uses less digits than its factorization.

530540247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38117.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 530540247 is about 23033.4592929503. The cubic root of 530540247 is about 809.5421112722.

The spelling of 530540247 in words is "five hundred thirty million, five hundred forty thousand, two hundred forty-seven".

Divisors: 1 3 5407 16221 32707 98121 176846749 530540247