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525202493 = 2353430847
BaseRepresentation
bin11111010011011…
…111010000111101
31100121021001101012
4133103133100331
52033422434433
6124040525005
716005101414
oct3723372075
91317231335
10525202493
1124a510452
12127a80765
1384a6a50a
144da7647b
1531195848
hex1f4df43d

525202493 has 8 divisors (see below), whose sum is σ = 558379008. Its totient is φ = 492887824.

The previous prime is 525202453. The next prime is 525202511. The reversal of 525202493 is 394202525.

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

It is a cyclic number.

It is not a de Polignac number, because 525202493 - 26 = 525202429 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 (525202453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214205 + ... + 216642.

It is an arithmetic number, because the mean of its divisors is an integer number (69797376).

Almost surely, 2525202493 is an apocalyptic number.

525202493 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

525202493 is a deficient number, since it is larger than the sum of its proper divisors (33176515).

525202493 is a wasteful number, since it uses less digits than its factorization.

525202493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430923.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 525202493 is about 22917.2968083062. The cubic root of 525202493 is about 806.8180265081.

Adding to 525202493 its sum of digits (32), we get a palindrome (525202525).

The spelling of 525202493 in words is "five hundred twenty-five million, two hundred two thousand, four hundred ninety-three".

Divisors: 1 23 53 1219 430847 9909481 22834891 525202493