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4222987 = 174353109
BaseRepresentation
bin10000000111000000001011
321221112211221
4100013000023
52040113422
6230302511
750615626
oct20070013
97845757
104222987
11242487a
1214b7a37
13b4b212
147bcdbd
155863c7
hex40700b

4222987 has 16 divisors (see below), whose sum is σ = 4704480. Its totient is φ = 3773952.

The previous prime is 4222973. The next prime is 4223003. The reversal of 4222987 is 7892224.

It is a cyclic number.

It is not a de Polignac number, because 4222987 - 27 = 4222859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4222927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38689 + ... + 38797.

It is an arithmetic number, because the mean of its divisors is an integer number (294030).

Almost surely, 24222987 is an apocalyptic number.

4222987 is a deficient number, since it is larger than the sum of its proper divisors (481493).

4222987 is a wasteful number, since it uses less digits than its factorization.

4222987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its digits is 16128, while the sum is 34.

The square root of 4222987 is about 2054.9907542371. The cubic root of 4222987 is about 161.6366775186.

The spelling of 4222987 in words is "four million, two hundred twenty-two thousand, nine hundred eighty-seven".

Divisors: 1 17 43 53 109 731 901 1853 2279 4687 5777 38743 79679 98209 248411 4222987