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525263431243 = 3125167505903
BaseRepresentation
bin1111010010011000010…
…00111110011001001011
31212012210111210222210011
413221030020332121023
532101214414244433
61041145214132351
752643342333005
oct7511410763113
91765714728704
10525263431243
111928435712a1
12859717b10b7
133a6bc11a265
141b5cc581375
15d9e39de3cd
hex7a4c23e64b

525263431243 has 8 divisors (see below), whose sum is σ = 544367609856. Its totient is φ = 506294265000.

The previous prime is 525263431229. The next prime is 525263431267. The reversal of 525263431243 is 342134362525.

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 525263431243 - 25 = 525263431211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525263431196 and 525263431205.

It is not an unprimeable number, because it can be changed into a prime (525263431543) 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, 33745171 + ... + 33760732.

It is an arithmetic number, because the mean of its divisors is an integer number (68045951232).

Almost surely, 2525263431243 is an apocalyptic number.

525263431243 is a deficient number, since it is larger than the sum of its proper divisors (19104178613).

525263431243 is a wasteful number, since it uses less digits than its factorization.

525263431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67506185.

The product of its digits is 518400, while the sum is 40.

Adding to 525263431243 its reverse (342134362525), we get a palindrome (867397793768).

The spelling of 525263431243 in words is "five hundred twenty-five billion, two hundred sixty-three million, four hundred thirty-one thousand, two hundred forty-three".

Divisors: 1 31 251 7781 67505903 2092682993 16943981653 525263431243