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4720809709 = 71161309217
BaseRepresentation
bin1000110010110000…
…11101011011101101
3110012000000222111001
410121120131123231
534132011402314
62100235200301
7224662135420
oct43130353355
913160028431
104720809709
112002857230
12ab8ba6091
135a3068935
1432ad879b7
151c96a8674
hex11961d6ed

4720809709 has 8 divisors (see below), whose sum is σ = 5885684928. Its totient is φ = 3678552960.

The previous prime is 4720809707. The next prime is 4720809727. The reversal of 4720809709 is 9079080274.

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

It is a cyclic number.

It is not a de Polignac number, because 4720809709 - 21 = 4720809707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720809707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30654532 + ... + 30654685.

It is an arithmetic number, because the mean of its divisors is an integer number (735710616).

Almost surely, 24720809709 is an apocalyptic number.

It is an amenable number.

4720809709 is a deficient number, since it is larger than the sum of its proper divisors (1164875219).

4720809709 is a wasteful number, since it uses less digits than its factorization.

4720809709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61309235.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 4720809709 is about 68708.1487816402. The cubic root of 4720809709 is about 1677.5372206770.

The spelling of 4720809709 in words is "four billion, seven hundred twenty million, eight hundred nine thousand, seven hundred nine".

Divisors: 1 7 11 77 61309217 429164519 674401387 4720809709