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4128704 = 26312081
BaseRepresentation
bin1111101111111111000000
321202202111222
433233333000
52024104304
6224254212
750044016
oct17577700
97682458
104128704
11236aa58
121471368
13b17328
147968b6
155684be
hex3effc0

4128704 has 28 divisors (see below), whose sum is σ = 8461248. Its totient is φ = 1996800.

The previous prime is 4128697. The next prime is 4128713. The reversal of 4128704 is 4078214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944 + ... + 3024.

Almost surely, 24128704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4128704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4230624).

4128704 is an abundant number, since it is smaller than the sum of its proper divisors (4332544).

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

4128704 is a wasteful number, since it uses less digits than its factorization.

4128704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 4128704 is about 2031.9212583169. The cubic root of 4128704 is about 160.4247049963.

The spelling of 4128704 in words is "four million, one hundred twenty-eight thousand, seven hundred four".

Divisors: 1 2 4 8 16 31 32 62 64 124 248 496 992 1984 2081 4162 8324 16648 33296 64511 66592 129022 133184 258044 516088 1032176 2064352 4128704