Search a number
-
+
3706081 = 31119551
BaseRepresentation
bin1110001000110011100001
320222021210021
432020303201
51422043311
6211233441
743333621
oct16106341
96867707
103706081
112101485
1212a8881
139c9b62
146c6881
154d3171
hex388ce1

3706081 has 4 divisors (see below), whose sum is σ = 3825664. Its totient is φ = 3586500.

The previous prime is 3706069. The next prime is 3706093. The reversal of 3706081 is 1806073.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1806073 = 5713163.

It is an interprime number because it is at equal distance from previous prime (3706069) and next prime (3706093).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3706081 is a prime.

It is a super-2 number, since 2×37060812 = 27470072757122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3706181) 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, 59745 + ... + 59806.

It is an arithmetic number, because the mean of its divisors is an integer number (956416).

Almost surely, 23706081 is an apocalyptic number.

3706081 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3706081 is a deficient number, since it is larger than the sum of its proper divisors (119583).

3706081 is a wasteful number, since it uses less digits than its factorization.

3706081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119582.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 3706081 is about 1925.1184379149. The cubic root of 3706081 is about 154.7527240028.

Subtracting from 3706081 its product of nonzero digits (1008), we obtain a palindrome (3705073).

The spelling of 3706081 in words is "three million, seven hundred six thousand, eighty-one".

Divisors: 1 31 119551 3706081