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4145227 = 31133717
BaseRepresentation
bin1111110100000001001011
321210121011221
433310001023
52030121402
6224502511
750143132
oct17640113
97717157
104145227
112381409
12147aa37
13b219c8
1479c919
1556d337
hex3f404b

4145227 has 4 divisors (see below), whose sum is σ = 4278976. Its totient is φ = 4011480.

The previous prime is 4145213. The next prime is 4145257. The reversal of 4145227 is 7225414.

4145227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4145227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66828 + ... + 66889.

It is an arithmetic number, because the mean of its divisors is an integer number (1069744).

Almost surely, 24145227 is an apocalyptic number.

4145227 is a deficient number, since it is larger than the sum of its proper divisors (133749).

4145227 is a wasteful number, since it uses less digits than its factorization.

4145227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133748.

The product of its digits is 2240, while the sum is 25.

The square root of 4145227 is about 2035.9830549393. The cubic root of 4145227 is about 160.6384257528.

The spelling of 4145227 in words is "four million, one hundred forty-five thousand, two hundred twenty-seven".

Divisors: 1 31 133717 4145227