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4026769 = 10139869
BaseRepresentation
bin1111010111000110010001
321120120200121
433113012101
52012324034
6222150241
746140565
oct17270621
97516617
104026769
11230040a
121422381
13aacb06
1476b6a5
155481b4
hex3d7191

4026769 has 4 divisors (see below), whose sum is σ = 4066740. Its totient is φ = 3986800.

The previous prime is 4026751. The next prime is 4026791. The reversal of 4026769 is 9676204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3240000 + 786769 = 1800^2 + 887^2 .

It is a cyclic number.

It is not a de Polignac number, because 4026769 - 29 = 4026257 is a prime.

It is a super-3 number, since 3×40267693 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4026719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19834 + ... + 20035.

It is an arithmetic number, because the mean of its divisors is an integer number (1016685).

Almost surely, 24026769 is an apocalyptic number.

It is an amenable number.

4026769 is a deficient number, since it is larger than the sum of its proper divisors (39971).

4026769 is a wasteful number, since it uses less digits than its factorization.

4026769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39970.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 4026769 is about 2006.6810907566. The cubic root of 4026769 is about 159.0934276806.

The spelling of 4026769 in words is "four million, twenty-six thousand, seven hundred sixty-nine".

Divisors: 1 101 39869 4026769