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4742 = 22371
BaseRepresentation
bin1001010000110
320111122
41022012
5122432
633542
716553
oct11206
96448
104742
113621
1228b2
13220a
141a2a
151612
hex1286

4742 has 4 divisors (see below), whose sum is σ = 7116. Its totient is φ = 2370.

The previous prime is 4733. The next prime is 4751. The reversal of 4742 is 2474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2474 = 21237.

It is an interprime number because it is at equal distance from previous prime (4733) and next prime (4751).

It is a self number, because there is not a number n which added to its sum of digits gives 4742.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 4742.

It is an unprimeable number.

4742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1184 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (1779).

24742 is an apocalyptic number.

4742 is a deficient number, since it is larger than the sum of its proper divisors (2374).

4742 is a wasteful number, since it uses less digits than its factorization.

4742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its digits is 224, while the sum is 17.

The square root of 4742 is about 68.8621812027. The cubic root of 4742 is about 16.8004346070.

The spelling of 4742 in words is "four thousand, seven hundred forty-two", and thus it is an iban number.

Divisors: 1 2 2371 4742