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2475820 = 225123791
BaseRepresentation
bin1001011100011100101100
311122210012001
421130130230
51113211240
6125022044
730021064
oct11343454
94583161
102475820
111441136
129b4924
13688ba9
144863a4
1533d89a
hex25c72c

2475820 has 12 divisors (see below), whose sum is σ = 5199264. Its totient is φ = 990320.

The previous prime is 2475799. The next prime is 2475821. The reversal of 2475820 is 285742.

2475820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×24758202 = 12259369344800, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2475821) 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 3 ways as a sum of consecutive naturals, for example, 61876 + ... + 61915.

It is an arithmetic number, because the mean of its divisors is an integer number (433272).

22475820 is an apocalyptic number.

2475820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2475820 is an abundant number, since it is smaller than the sum of its proper divisors (2723444).

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

2475820 is a wasteful number, since it uses less digits than its factorization.

2475820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123800 (or 123798 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2475820 is about 1573.4738637804. The cubic root of 2475820 is about 135.2818983738.

The spelling of 2475820 in words is "two million, four hundred seventy-five thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 123791 247582 495164 618955 1237910 2475820