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4020369 = 311291187
BaseRepresentation
bin1111010101100010010001
321120020220120
433111202101
52012122434
6222100453
746113123
oct17254221
97506816
104020369
1122a6621
12141a729
13aa9c22
14769213
15546349
hex3d5891

4020369 has 8 divisors (see below), whose sum is σ = 5369760. Its totient is φ = 2675616.

The previous prime is 4020361. The next prime is 4020407. The reversal of 4020369 is 9630204.

4020369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4020369 - 23 = 4020361 is a prime.

It is a super-2 number, since 2×40203692 = 32326733792322, which contains 22 as substring.

4020369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4020361) 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 7 ways as a sum of consecutive naturals, for example, 2794 + ... + 3980.

It is an arithmetic number, because the mean of its divisors is an integer number (671220).

Almost surely, 24020369 is an apocalyptic number.

It is an amenable number.

4020369 is a deficient number, since it is larger than the sum of its proper divisors (1349391).

4020369 is a wasteful number, since it uses less digits than its factorization.

4020369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 4020369 is about 2005.0857837010. The cubic root of 4020369 is about 159.0090972209.

The spelling of 4020369 in words is "four million, twenty thousand, three hundred sixty-nine".

Divisors: 1 3 1129 1187 3387 3561 1340123 4020369