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4428372 = 2231328387
BaseRepresentation
bin10000111001001001010100
322022222120210
4100321021110
52113201442
6234525420
752432464
oct20711124
98288523
104428372
112555113
121596870
13bc0850
14833ba4
155c719c
hex439254

4428372 has 24 divisors (see below), whose sum is σ = 11128096. Its totient is φ = 1362528.

The previous prime is 4428353. The next prime is 4428379. The reversal of 4428372 is 2738244.

It is a super-2 number, since 2×44283722 = 39220957140768, which contains 22 as substring.

It is a d-powerful number, because it can be written as 48 + 411 + 211 + 85 + 35 + 74 + 217 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14038 + ... + 14349.

Almost surely, 24428372 is an apocalyptic number.

It is an amenable number.

4428372 is an abundant number, since it is smaller than the sum of its proper divisors (6699724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4428372 is a wasteful number, since it uses less digits than its factorization.

4428372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28407 (or 28405 counting only the distinct ones).

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

The square root of 4428372 is about 2104.3697393757. The cubic root of 4428372 is about 164.2157086196.

The spelling of 4428372 in words is "four million, four hundred twenty-eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 28387 56774 85161 113548 170322 340644 369031 738062 1107093 1476124 2214186 4428372