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4528880 = 24556611
BaseRepresentation
bin10001010001101011110000
322112002110022
4101101223300
52124411010
6241023012
753331506
oct21215360
98462408
104528880
112613684
121624a68
13c27515
1485c676
155e6d55
hex451af0

4528880 has 20 divisors (see below), whose sum is σ = 10529832. Its totient is φ = 1811520.

The previous prime is 4528831. The next prime is 4528891. The reversal of 4528880 is 888254.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 4528880.

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, 28226 + ... + 28385.

Almost surely, 24528880 is an apocalyptic number.

4528880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4528880 is an abundant number, since it is smaller than the sum of its proper divisors (6000952).

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

4528880 is a wasteful number, since it uses less digits than its factorization.

4528880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56624 (or 56618 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 4528880 is about 2128.1165381623. The cubic root of 4528880 is about 165.4487934972.

It can be divided in two parts, 45 and 28880, that multiplied together give a square (1299600 = 11402).

The spelling of 4528880 in words is "four million, five hundred twenty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 56611 113222 226444 283055 452888 566110 905776 1132220 2264440 4528880