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525744047 = 5323394241
BaseRepresentation
bin11111010101100…
…011011110101111
31100122021120020202
4133111203132233
52034042302142
6124100304115
716012515323
oct3725433657
91318246222
10525744047
1124a850314
121280a203b
1384bc9b6a
144db77983
1531251032
hex1f5637af

525744047 has 8 divisors (see below), whose sum is σ = 536019120. Its totient is φ = 515482240.

The previous prime is 525744019. The next prime is 525744049. The reversal of 525744047 is 740447525.

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

It is not a de Polignac number, because 525744047 - 28 = 525743791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525744047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525744049) 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, 121847 + ... + 126087.

It is an arithmetic number, because the mean of its divisors is an integer number (67002390).

Almost surely, 2525744047 is an apocalyptic number.

525744047 is a deficient number, since it is larger than the sum of its proper divisors (10275073).

525744047 is a wasteful number, since it uses less digits than its factorization.

525744047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633.

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 525744047 is about 22929.1091628087. The cubic root of 525744047 is about 807.0952436715.

The spelling of 525744047 in words is "five hundred twenty-five million, seven hundred forty-four thousand, forty-seven".

Divisors: 1 53 2339 4241 123967 224773 9919699 525744047