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4020010 = 251812221
BaseRepresentation
bin1111010101011100101010
321120020102021
433111130222
52012120020
6222055054
746112101
oct17253452
97506367
104020010
1122a6325
12141a48a
13aa9a07
14769038
155461aa
hex3d572a

4020010 has 16 divisors (see below), whose sum is σ = 7279272. Its totient is φ = 1598400.

The previous prime is 4019993. The next prime is 4020011. The reversal of 4020010 is 100204.

It can be written as a sum of positive squares in 4 ways, for example, as 2301289 + 1718721 = 1517^2 + 1311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4019975 and 4020002.

It is not an unprimeable number, because it can be changed into a prime (4020011) 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 7 ways as a sum of consecutive naturals, for example, 700 + ... + 2920.

Almost surely, 24020010 is an apocalyptic number.

4020010 is a deficient number, since it is larger than the sum of its proper divisors (3259262).

4020010 is a wasteful number, since it uses less digits than its factorization.

4020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 4020010 is about 2004.9962593481. The cubic root of 4020010 is about 159.0043641591.

Adding to 4020010 its reverse (100204), we get a palindrome (4120214).

The spelling of 4020010 in words is "four million, twenty thousand, ten".

Divisors: 1 2 5 10 181 362 905 1810 2221 4442 11105 22210 402001 804002 2010005 4020010