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538216201 = 1393872059
BaseRepresentation
bin100000000101001…
…000011100001001
31101111202012211101
4200011020130021
52100240404301
6125223501401
716223522305
oct4005103411
91344665741
10538216201
11256899886
121302b7861
1387675a33
14516a2d05
15323b6701
hex20148709

538216201 has 4 divisors (see below), whose sum is σ = 542088400. Its totient is φ = 534344004.

The previous prime is 538216199. The next prime is 538216207. The reversal of 538216201 is 102612835.

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 538216201 - 21 = 538216199 is a prime.

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 538216201.

It is not an unprimeable number, because it can be changed into a prime (538216207) 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, 1935891 + ... + 1936168.

It is an arithmetic number, because the mean of its divisors is an integer number (135522100).

Almost surely, 2538216201 is an apocalyptic number.

It is an amenable number.

538216201 is a deficient number, since it is larger than the sum of its proper divisors (3872199).

538216201 is a wasteful number, since it uses less digits than its factorization.

538216201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872198.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 538216201 is about 23199.4870848474. The cubic root of 538216201 is about 813.4276337218.

The spelling of 538216201 in words is "five hundred thirty-eight million, two hundred sixteen thousand, two hundred one".

Divisors: 1 139 3872059 538216201