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3886042 = 21943021
BaseRepresentation
bin1110110100101111011010
321022102122111
432310233122
51443323132
6215142534
745013366
oct16645732
97272574
103886042
112214706
121374a4a
13a60a44
147322a6
1551b647
hex3b4bda

3886042 has 4 divisors (see below), whose sum is σ = 5829066. Its totient is φ = 1943020.

The previous prime is 3886037. The next prime is 3886049. The reversal of 3886042 is 2406883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2406883 = 7332971.

It can be written as a sum of positive squares in only one way, i.e., 3606201 + 279841 = 1899^2 + 529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3885995 and 3886013.

It is not an unprimeable number, because it can be changed into a prime (3886049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971509 + ... + 971512.

Almost surely, 23886042 is an apocalyptic number.

3886042 is a deficient number, since it is larger than the sum of its proper divisors (1943024).

3886042 is a wasteful number, since it uses less digits than its factorization.

3886042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943023.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 3886042 is about 1971.3046441380. The cubic root of 3886042 is about 157.2180830698.

The spelling of 3886042 in words is "three million, eight hundred eighty-six thousand, forty-two".

Divisors: 1 2 1943021 3886042