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4742879 = 6177687
BaseRepresentation
bin10010000101111011011111
322220222000012
4102011323133
52203233004
6245353435
755212431
oct22057337
98828005
104742879
11274a439
12170887b
13ca0a4b
148b6651
1563a46e
hex485edf

4742879 has 4 divisors (see below), whose sum is σ = 4751184. Its totient is φ = 4734576.

The previous prime is 4742873. The next prime is 4742887. The reversal of 4742879 is 9782474.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4742879 is a prime.

It is a d-powerful number, because it can be written as 43 + 73 + 411 + 219 + 83 + 75 + 94 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4742873) 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, 3227 + ... + 4460.

It is an arithmetic number, because the mean of its divisors is an integer number (1187796).

Almost surely, 24742879 is an apocalyptic number.

4742879 is a deficient number, since it is larger than the sum of its proper divisors (8305).

4742879 is an equidigital number, since it uses as much as digits as its factorization.

4742879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8304.

The product of its digits is 112896, while the sum is 41.

The square root of 4742879 is about 2177.8151895880. The cubic root of 4742879 is about 168.0147261279.

The spelling of 4742879 in words is "four million, seven hundred forty-two thousand, eight hundred seventy-nine".

Divisors: 1 617 7687 4742879