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525040005 = 3575000381
BaseRepresentation
bin11111010010110…
…111100110000101
31100120221210111010
4133102313212011
52033402240010
6124033232433
716003523610
oct3722674605
91316853433
10525040005
1124a40a366
12127a02719
1384a11579
144da33177
1531162620
hex1f4b7985

525040005 has 16 divisors (see below), whose sum is σ = 960073344. Its totient is φ = 240018240.

The previous prime is 525040001. The next prime is 525040031. The reversal of 525040005 is 500040525.

It is not a de Polignac number, because 525040005 - 22 = 525040001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525040001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500086 + ... + 2500295.

It is an arithmetic number, because the mean of its divisors is an integer number (60004584).

Almost surely, 2525040005 is an apocalyptic number.

It is an amenable number.

525040005 is a deficient number, since it is larger than the sum of its proper divisors (435033339).

525040005 is a wasteful number, since it uses less digits than its factorization.

525040005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000396.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 525040005 is about 22913.7514388194. The cubic root of 525040005 is about 806.7348130356.

The spelling of 525040005 in words is "five hundred twenty-five million, forty thousand, five".

Divisors: 1 3 5 7 15 21 35 105 5000381 15001143 25001905 35002667 75005715 105008001 175013335 525040005