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2988644 = 22747161
BaseRepresentation
bin1011011001101001100100
312121211122112
423121221210
51231114034
6144020152
734255151
oct13315144
95554575
102988644
11176145a
121001658
13808439
1457b228
153e07ce
hex2d9a64

2988644 has 6 divisors (see below), whose sum is σ = 5230134. Its totient is φ = 1494320.

The previous prime is 2988637. The next prime is 2988647. The reversal of 2988644 is 4468892.

2988644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 1350244 = 1280^2 + 1162^2 .

It is not an unprimeable number, because it can be changed into a prime (2988647) 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 as a sum of consecutive naturals, namely, 373577 + ... + 373584.

It is an arithmetic number, because the mean of its divisors is an integer number (871689).

22988644 is an apocalyptic number.

It is an amenable number.

2988644 is a deficient number, since it is larger than the sum of its proper divisors (2241490).

2988644 is a wasteful number, since it uses less digits than its factorization.

2988644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747165 (or 747163 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 2988644 is about 1728.7695045899. The cubic root of 2988644 is about 144.0427470827.

The spelling of 2988644 in words is "two million, nine hundred eighty-eight thousand, six hundred forty-four".

Divisors: 1 2 4 747161 1494322 2988644