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2888020 = 225197733
BaseRepresentation
bin1011000001000101010100
312102201121201
423001011110
51214404040
6141522244
733355612
oct13010524
95381551
102888020
1116a28a3
12b73384
137a16b5
145526b2
153c0a9a
hex2c1154

2888020 has 24 divisors (see below), whose sum is σ = 6103944. Its totient is φ = 1147776.

The previous prime is 2887993. The next prime is 2888021. The reversal of 2888020 is 208882.

It can be written as a sum of positive squares in 4 ways, for example, as 1943236 + 944784 = 1394^2 + 972^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2888020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2888021) 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, 3574 + ... + 4306.

It is an arithmetic number, because the mean of its divisors is an integer number (254331).

22888020 is an apocalyptic number.

2888020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2888020 is an abundant number, since it is smaller than the sum of its proper divisors (3215924).

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

2888020 is a wasteful number, since it uses less digits than its factorization.

2888020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 2888020 is about 1699.4175472791. The cubic root of 2888020 is about 142.4076759108.

It can be divided in two parts, 28880 and 20, that multiplied together give a square (577600 = 7602).

The spelling of 2888020 in words is "two million, eight hundred eighty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 197 394 733 788 985 1466 1970 2932 3665 3940 7330 14660 144401 288802 577604 722005 1444010 2888020