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4223487 = 31407829
BaseRepresentation
bin10000000111000111111111
321221120112110
4100013013333
52040122422
6230305103
750620242
oct20070777
97846473
104223487
112425194
1214b8193
13b4b508
147bd259
1558660c
hex4071ff

4223487 has 4 divisors (see below), whose sum is σ = 5631320. Its totient is φ = 2815656.

The previous prime is 4223459. The next prime is 4223501. The reversal of 4223487 is 7843224.

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

It is not a de Polignac number, because 4223487 - 28 = 4223231 is a prime.

It is a D-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 (4223407) 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 3 ways as a sum of consecutive naturals, for example, 703912 + ... + 703917.

It is an arithmetic number, because the mean of its divisors is an integer number (1407830).

Almost surely, 24223487 is an apocalyptic number.

4223487 is a deficient number, since it is larger than the sum of its proper divisors (1407833).

4223487 is a wasteful number, since it uses less digits than its factorization.

4223487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407832.

The product of its digits is 10752, while the sum is 30.

The square root of 4223487 is about 2055.1124056849. The cubic root of 4223487 is about 161.6430565065.

The spelling of 4223487 in words is "four million, two hundred twenty-three thousand, four hundred eighty-seven".

Divisors: 1 3 1407829 4223487