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4742979 = 32954517
BaseRepresentation
bin10010000101111101000011
322220222010220
4102011331003
52203233404
6245354123
755212633
oct22057503
98828126
104742979
11274a51a
121708943
13ca0ac7
148b66c3
1563a4d9
hex485f43

4742979 has 8 divisors (see below), whose sum is σ = 6542160. Its totient is φ = 3052896.

The previous prime is 4742977. The next prime is 4742981. The reversal of 4742979 is 9792474.

It is an interprime number because it is at equal distance from previous prime (4742977) and next prime (4742981).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4742979 - 21 = 4742977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4742979.

It is not an unprimeable number, because it can be changed into a prime (4742971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27172 + ... + 27345.

It is an arithmetic number, because the mean of its divisors is an integer number (817770).

Almost surely, 24742979 is an apocalyptic number.

4742979 is a deficient number, since it is larger than the sum of its proper divisors (1799181).

4742979 is a wasteful number, since it uses less digits than its factorization.

4742979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54549.

The product of its digits is 127008, while the sum is 42.

The square root of 4742979 is about 2177.8381482562. The cubic root of 4742979 is about 168.0159069405.

The spelling of 4742979 in words is "four million, seven hundred forty-two thousand, nine hundred seventy-nine".

Divisors: 1 3 29 87 54517 163551 1580993 4742979