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2030385 = 35761317
BaseRepresentation
bin111101111101100110001
310211011011110
413233230301
51004433020
6111303533
723154330
oct7575461
93734143
102030385
111167505
1281aba9
13561216
143abd17
152a18e0
hex1efb31

2030385 has 32 divisors (see below), whose sum is σ = 3785472. Its totient is φ = 910080.

The previous prime is 2030383. The next prime is 2030389. The reversal of 2030385 is 5830302.

It is not a de Polignac number, because 2030385 - 21 = 2030383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6247 + ... + 6563.

It is an arithmetic number, because the mean of its divisors is an integer number (118296).

22030385 is an apocalyptic number.

It is an amenable number.

2030385 is a deficient number, since it is larger than the sum of its proper divisors (1755087).

2030385 is a wasteful number, since it uses less digits than its factorization.

2030385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2030385 is about 1424.9157869853. The cubic root of 2030385 is about 126.6269458403.

Adding to 2030385 its reverse (5830302), we get a palindrome (7860687).

It can be divided in two parts, 2030 and 385, that added together give a triangular number (2415 = T69).

The spelling of 2030385 in words is "two million, thirty thousand, three hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 61 105 183 305 317 427 915 951 1281 1585 2135 2219 4755 6405 6657 11095 19337 33285 58011 96685 135359 290055 406077 676795 2030385