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4720705 = 51185831
BaseRepresentation
bin10010000000100001000001
322212211120221
4102000201001
52202030310
6245103041
755060663
oct22004101
98784527
104720705
112734810
1216b7a81
13c93922
148ac533
15633ada
hex480841

4720705 has 8 divisors (see below), whose sum is σ = 6179904. Its totient is φ = 3433200.

The previous prime is 4720697. The next prime is 4720741. The reversal of 4720705 is 5070274.

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

It is not a de Polignac number, because 4720705 - 23 = 4720697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4720705.

It is a congruent number.

It is an unprimeable 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 in 7 ways as a sum of consecutive naturals, for example, 42861 + ... + 42970.

It is an arithmetic number, because the mean of its divisors is an integer number (772488).

Almost surely, 24720705 is an apocalyptic number.

It is an amenable number.

4720705 is a deficient number, since it is larger than the sum of its proper divisors (1459199).

4720705 is a wasteful number, since it uses less digits than its factorization.

4720705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85847.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 4720705 is about 2172.7183434583. The cubic root of 4720705 is about 167.7524817823.

Adding to 4720705 its reverse (5070274), we get a palindrome (9790979).

The spelling of 4720705 in words is "four million, seven hundred twenty thousand, seven hundred five".

Divisors: 1 5 11 55 85831 429155 944141 4720705