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526230431 = 4312237917
BaseRepresentation
bin11111010111011…
…010001110011111
31100200012021102222
4133113122032133
52034203333211
6124114535555
716016612336
oct3727321637
91320167388
10526230431
11250052791
121282975bb
138503a36c
144dc62d1d
15312ea1db
hex1f5da39f

526230431 has 4 divisors (see below), whose sum is σ = 538468392. Its totient is φ = 513992472.

The previous prime is 526230421. The next prime is 526230437. The reversal of 526230431 is 134032625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-526230431 is a prime.

It is a super-2 number, since 2×5262304312 = 553836933020891522, which contains 22 as substring.

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 526230431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526230437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6118916 + ... + 6119001.

It is an arithmetic number, because the mean of its divisors is an integer number (134617098).

Almost surely, 2526230431 is an apocalyptic number.

526230431 is a deficient number, since it is larger than the sum of its proper divisors (12237961).

526230431 is a wasteful number, since it uses less digits than its factorization.

526230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12237960.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 526230431 is about 22939.7129668180. The cubic root of 526230431 is about 807.3440575325.

The spelling of 526230431 in words is "five hundred twenty-six million, two hundred thirty thousand, four hundred thirty-one".

Divisors: 1 43 12237917 526230431