Search a number
-
+
3938725 = 52771317
BaseRepresentation
bin1111000001100110100101
321102002220201
433001212211
52002014400
6220230501
745323110
oct17014645
97362821
103938725
11225024a
12139b431
13a7ba0b
14747577
1552c06a
hex3c19a5

3938725 has 24 divisors (see below), whose sum is σ = 5678208. Its totient is φ = 2654400.

The previous prime is 3938723. The next prime is 3938731. The reversal of 3938725 is 5278393.

3938725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3938725 - 21 = 3938723 is a prime.

It is a Duffinian number.

Its product of digits (45360) is a multiple of the sum of its prime factors (405).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938723) 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 23 ways as a sum of consecutive naturals, for example, 12267 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (236592).

Almost surely, 23938725 is an apocalyptic number.

3938725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3938725 is a deficient number, since it is larger than the sum of its proper divisors (1739483).

3938725 is a wasteful number, since it uses less digits than its factorization.

3938725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 400 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 3938725 is about 1984.6221302807. The cubic root of 3938725 is about 157.9253639906.

The spelling of 3938725 in words is "three million, nine hundred thirty-eight thousand, seven hundred twenty-five".

Divisors: 1 5 7 25 35 71 175 317 355 497 1585 1775 2219 2485 7925 11095 12425 22507 55475 112535 157549 562675 787745 3938725