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525430201 = 4312219307
BaseRepresentation
bin11111010100010…
…110110110111001
31100121200121201211
4133110112312321
52034002231301
6124045443121
716010040322
oct3724266671
91317617654
10525430201
1124a65653a
12127b704a1
1384b1a05a
144dad5449
15311dd051
hex1f516db9

525430201 has 4 divisors (see below), whose sum is σ = 537649552. Its totient is φ = 513210852.

The previous prime is 525430189. The next prime is 525430261. The reversal of 525430201 is 102034525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525430201 - 227 = 391212473 is a prime.

It is a super-2 number, since 2×5254302012 = 552153792245800802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525430261) 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, 6109611 + ... + 6109696.

It is an arithmetic number, because the mean of its divisors is an integer number (134412388).

Almost surely, 2525430201 is an apocalyptic number.

It is an amenable number.

525430201 is a deficient number, since it is larger than the sum of its proper divisors (12219351).

525430201 is a wasteful number, since it uses less digits than its factorization.

525430201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219350.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 525430201 is about 22922.2643078733. The cubic root of 525430201 is about 806.9346116201.

Adding to 525430201 its reverse (102034525), we get a palindrome (627464726).

The spelling of 525430201 in words is "five hundred twenty-five million, four hundred thirty thousand, two hundred one".

Divisors: 1 43 12219307 525430201