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4227197 = 13225013
BaseRepresentation
bin10000001000000001111101
321221202121212
4100020001331
52040232242
6230334205
750634122
oct20100175
97852555
104227197
112427a57
1214ba365
13b50100
147c0749
15587782
hex40807d

4227197 has 6 divisors (see below), whose sum is σ = 4577562. Its totient is φ = 3901872.

The previous prime is 4227187. The next prime is 4227229. The reversal of 4227197 is 7917224.

It can be written as a sum of positive squares in 3 ways, for example, as 498436 + 3728761 = 706^2 + 1931^2 .

It is not a de Polignac number, because 4227197 - 214 = 4210813 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4227137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12338 + ... + 12675.

It is an arithmetic number, because the mean of its divisors is an integer number (762927).

Almost surely, 24227197 is an apocalyptic number.

It is an amenable number.

4227197 is a deficient number, since it is larger than the sum of its proper divisors (350365).

4227197 is a wasteful number, since it uses less digits than its factorization.

4227197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25039 (or 25026 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 4227197 is about 2056.0148345768. The cubic root of 4227197 is about 161.6903728772.

The spelling of 4227197 in words is "four million, two hundred twenty-seven thousand, one hundred ninety-seven".

Divisors: 1 13 169 25013 325169 4227197