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2989928 = 23973853
BaseRepresentation
bin1011011001111101101000
312121220102002
423121331220
51231134203
6144030132
734261664
oct13317550
95556362
102989928
111762417
121002348
13808bb6
1457b8a4
153e0d88
hex2d9f68

2989928 has 16 divisors (see below), whose sum is σ = 5665380. Its totient is φ = 1479168.

The previous prime is 2989927. The next prime is 2989937. The reversal of 2989928 is 8299892.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2696164 + 293764 = 1642^2 + 542^2 .

It is not an unprimeable number, because it can be changed into a prime (2989927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151 + ... + 2702.

22989928 is an apocalyptic number.

It is an amenable number.

2989928 is a deficient number, since it is larger than the sum of its proper divisors (2675452).

2989928 is a wasteful number, since it uses less digits than its factorization.

2989928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956 (or 3952 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 2989928 is about 1729.1408271162. The cubic root of 2989928 is about 144.0633723124.

The spelling of 2989928 in words is "two million, nine hundred eighty-nine thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 97 194 388 776 3853 7706 15412 30824 373741 747482 1494964 2989928