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538620207 = 37312232011
BaseRepresentation
bin100000000110101…
…011000100101111
31101112111202000120
4200012223010233
52100341321312
6125240300023
716230124206
oct4006530457
91345452016
10538620207
11257045374
12130471613
13877878a8
145176a23d
153244628c
hex201ab12f

538620207 has 16 divisors (see below), whose sum is σ = 728955648. Its totient is φ = 353695680.

The previous prime is 538620149. The next prime is 538620217. The reversal of 538620207 is 702026835.

It is not a de Polignac number, because 538620207 - 26 = 538620143 is a prime.

It is a super-2 number, since 2×5386202072 = 580223454777445698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538620217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266832 + ... + 268842.

It is an arithmetic number, because the mean of its divisors is an integer number (45559728).

Almost surely, 2538620207 is an apocalyptic number.

538620207 is a deficient number, since it is larger than the sum of its proper divisors (190335441).

538620207 is a wasteful number, since it uses less digits than its factorization.

538620207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 538620207 is about 23208.1926698311. The cubic root of 538620207 is about 813.6311129500.

The spelling of 538620207 in words is "five hundred thirty-eight million, six hundred twenty thousand, two hundred seven".

Divisors: 1 3 73 219 1223 2011 3669 6033 89279 146803 267837 440409 2459453 7378359 179540069 538620207