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4227479 = 9774327
BaseRepresentation
bin10000001000000110010111
321221210000022
4100020012113
52040234404
6230335355
750635004
oct20100627
97853008
104227479
112428193
1214ba55b
13b50289
147c08ab
155878be
hex408197

4227479 has 4 divisors (see below), whose sum is σ = 4232784. Its totient is φ = 4222176.

The previous prime is 4227451. The next prime is 4227491. The reversal of 4227479 is 9747224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4227479 - 212 = 4223383 is a prime.

It is a d-powerful number, because it can be written as 44 + 27 + 215 + 7 + 411 + 7 + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221479) 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, 1187 + ... + 3140.

It is an arithmetic number, because the mean of its divisors is an integer number (1058196).

Almost surely, 24227479 is an apocalyptic number.

4227479 is a deficient number, since it is larger than the sum of its proper divisors (5305).

4227479 is an equidigital number, since it uses as much as digits as its factorization.

4227479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304.

The product of its digits is 28224, while the sum is 35.

The square root of 4227479 is about 2056.0834127048. The cubic root of 4227479 is about 161.6939682992.

The spelling of 4227479 in words is "four million, two hundred twenty-seven thousand, four hundred seventy-nine".

Divisors: 1 977 4327 4227479