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3925386 = 232218077
BaseRepresentation
bin1110111110010110001010
321101102121200
432332112022
52001103021
6220045030
745236163
oct16762612
97342550
103925386
112241223
121393776
13a7591a
1474276a
15528126
hex3be58a

3925386 has 12 divisors (see below), whose sum is σ = 8505042. Its totient is φ = 1308456.

The previous prime is 3925379. The next prime is 3925391. The reversal of 3925386 is 6835293.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 1252161 = 1635^2 + 1119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3925386.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 109021 + ... + 109056.

Almost surely, 23925386 is an apocalyptic number.

3925386 is an abundant number, since it is smaller than the sum of its proper divisors (4579656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3925386 is a wasteful number, since it uses less digits than its factorization.

3925386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218085 (or 218082 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3925386 is about 1981.2586908327. The cubic root of 3925386 is about 157.7468841553.

It can be divided in two parts, 392 and 5386, that added together give a triangular number (5778 = T107).

The spelling of 3925386 in words is "three million, nine hundred twenty-five thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 218077 436154 654231 1308462 1962693 3925386