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7066 = 23533
BaseRepresentation
bin1101110011010
3100200201
41232122
5211231
652414
726413
oct15632
910621
107066
115344
12410a
1332a7
14280a
152161
hex1b9a

7066 has 4 divisors (see below), whose sum is σ = 10602. Its totient is φ = 3532.

The previous prime is 7057. The next prime is 7069. The reversal of 7066 is 6607.

It can be divided in two parts, 70 and 66, that added together give a triangular number (136 = T16).

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5041 + 2025 = 71^2 + 45^2 .

It is not an unprimeable number, because it can be changed into a prime (7069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765 + ... + 1768.

27066 is an apocalyptic number.

7066 is a deficient number, since it is larger than the sum of its proper divisors (3536).

7066 is a wasteful number, since it uses less digits than its factorization.

7066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 7066 is about 84.0595027347. The cubic root of 7066 is about 19.1892445548.

The spelling of 7066 in words is "seven thousand, sixty-six".

Divisors: 1 2 3533 7066