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4428237 = 31131109
BaseRepresentation
bin10000111001000111001101
322022222101210
4100321013031
52113200422
6234525033
752432212
oct20710715
98288353
104428237
112555000
121596779
13bc0778
14833b09
155c710c
hex4391cd

4428237 has 16 divisors (see below), whose sum is σ = 6500160. Its totient is φ = 2681360.

The previous prime is 4428233. The next prime is 4428239. The reversal of 4428237 is 7328244.

It is not a de Polignac number, because 4428237 - 22 = 4428233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428233) 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 15 ways as a sum of consecutive naturals, for example, 3439 + ... + 4547.

It is an arithmetic number, because the mean of its divisors is an integer number (406260).

Almost surely, 24428237 is an apocalyptic number.

It is an amenable number.

4428237 is a deficient number, since it is larger than the sum of its proper divisors (2071923).

4428237 is a wasteful number, since it uses less digits than its factorization.

4428237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1123 counting only the distinct ones).

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

The square root of 4428237 is about 2104.3376630189. The cubic root of 4428237 is about 164.2140398840.

The spelling of 4428237 in words is "four million, four hundred twenty-eight thousand, two hundred thirty-seven".

Divisors: 1 3 11 33 121 363 1109 1331 3327 3993 12199 36597 134189 402567 1476079 4428237