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7058 = 23529
BaseRepresentation
bin1101110010010
3100200102
41232102
5211213
652402
726402
oct15622
910612
107058
115337
124102
13329c
142802
152158
hex1b92

7058 has 4 divisors (see below), whose sum is σ = 10590. Its totient is φ = 3528.

The previous prime is 7057. The next prime is 7069. The reversal of 7058 is 8507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8507 = 47181.

It can be written as a sum of positive squares in only one way, i.e., 6889 + 169 = 83^2 + 13^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1763 + ... + 1766.

27058 is an apocalyptic number.

7058 is a deficient number, since it is larger than the sum of its proper divisors (3532).

7058 is a wasteful number, since it uses less digits than its factorization.

7058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 7058 is about 84.0119039184. The cubic root of 7058 is about 19.1819999125.

It can be divided in two parts, 70 and 58, that added together give a 7-th power (128 = 27).

The spelling of 7058 in words is "seven thousand, fifty-eight".

Divisors: 1 2 3529 7058