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3920469 = 37186689
BaseRepresentation
bin1110111101001001010101
321101011212120
432331021111
52000423334
6220010153
745215640
oct16751125
97334776
103920469
112238563
121390959
13a73607
14740a57
15526949
hex3bd255

3920469 has 8 divisors (see below), whose sum is σ = 5974080. Its totient is φ = 2240256.

The previous prime is 3920467. The next prime is 3920471. The reversal of 3920469 is 9640293.

It is an interprime number because it is at equal distance from previous prime (3920467) and next prime (3920471).

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

It is not a de Polignac number, because 3920469 - 21 = 3920467 is a prime.

It is a super-3 number, since 3×39204693 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

3920469 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920467) 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, 93324 + ... + 93365.

It is an arithmetic number, because the mean of its divisors is an integer number (746760).

Almost surely, 23920469 is an apocalyptic number.

It is an amenable number.

3920469 is a deficient number, since it is larger than the sum of its proper divisors (2053611).

3920469 is a wasteful number, since it uses less digits than its factorization.

3920469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186699.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 3920469 is about 1980.0174241658. The cubic root of 3920469 is about 157.6809912287.

It can be divided in two parts, 392046 and 9, that added together give a triangular number (392055 = T885).

The spelling of 3920469 in words is "three million, nine hundred twenty thousand, four hundred sixty-nine".

Divisors: 1 3 7 21 186689 560067 1306823 3920469