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2989925 = 52412917
BaseRepresentation
bin1011011001111101100101
312121220101222
423121331211
51231134200
6144030125
734261661
oct13317545
95556358
102989925
111762414
121002345
13808bb3
1457b8a1
153e0d85
hex2d9f65

2989925 has 12 divisors (see below), whose sum is σ = 3799236. Its totient is φ = 2332800.

The previous prime is 2989879. The next prime is 2989927. The reversal of 2989925 is 5299892.

It can be written as a sum of positive squares in 6 ways, for example, as 7396 + 2982529 = 86^2 + 1727^2 .

It is not a de Polignac number, because 2989925 - 210 = 2988901 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (316603).

22989925 is an apocalyptic number.

2989925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2989925 is a deficient number, since it is larger than the sum of its proper divisors (809311).

2989925 is a wasteful number, since it uses less digits than its factorization.

2989925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968 (or 2963 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 2989925 is about 1729.1399596331. The cubic root of 2989925 is about 144.0633241295.

The spelling of 2989925 in words is "two million, nine hundred eighty-nine thousand, nine hundred twenty-five".

Divisors: 1 5 25 41 205 1025 2917 14585 72925 119597 597985 2989925