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525010431 = 31115909407
BaseRepresentation
bin11111010010110…
…000010111111111
31100120220021220210
4133102300113333
52033400313211
6124032443503
716003341441
oct3722602777
91316807823
10525010431
1124a39a120
121279a9593
1384a00c7a
144da26491
15311589a6
hex1f4b05ff

525010431 has 8 divisors (see below), whose sum is σ = 763651584. Its totient is φ = 318188120.

The previous prime is 525010429. The next prime is 525010433. The reversal of 525010431 is 134010525.

It is an interprime number because it is at equal distance from previous prime (525010429) and next prime (525010433).

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 525010431 - 21 = 525010429 is a prime.

It is a super-2 number, since 2×5250104312 = 551271905317611522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525010398 and 525010407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525010433) 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, 7954671 + ... + 7954736.

It is an arithmetic number, because the mean of its divisors is an integer number (95456448).

Almost surely, 2525010431 is an apocalyptic number.

525010431 is a deficient number, since it is larger than the sum of its proper divisors (238641153).

525010431 is a wasteful number, since it uses less digits than its factorization.

525010431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15909421.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 525010431 is about 22913.1060967299. The cubic root of 525010431 is about 806.7196657306.

Adding to 525010431 its reverse (134010525), we get a palindrome (659020956).

The spelling of 525010431 in words is "five hundred twenty-five million, ten thousand, four hundred thirty-one".

Divisors: 1 3 11 33 15909407 47728221 175003477 525010431