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2903668 = 221742701
BaseRepresentation
bin1011000100111001110100
312110112002021
423010321310
51220404133
6142122524
733452335
oct13047164
95415067
102903668
111703629
12b80444
137a8861
1455828c
153c552d
hex2c4e74

2903668 has 12 divisors (see below), whose sum is σ = 5380452. Its totient is φ = 1366400.

The previous prime is 2903657. The next prime is 2903669. The reversal of 2903668 is 8663092.

It is a happy number.

2903668 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2521744 + 381924 = 1588^2 + 618^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2903669) 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, 21283 + ... + 21418.

It is an arithmetic number, because the mean of its divisors is an integer number (448371).

22903668 is an apocalyptic number.

It is an amenable number.

2903668 is a deficient number, since it is larger than the sum of its proper divisors (2476784).

2903668 is a wasteful number, since it uses less digits than its factorization.

2903668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42722 (or 42720 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2903668 is about 1704.0152581476. The cubic root of 2903668 is about 142.6644126739.

The spelling of 2903668 in words is "two million, nine hundred three thousand, six hundred sixty-eight".

Divisors: 1 2 4 17 34 68 42701 85402 170804 725917 1451834 2903668