Search a number
-
+
6128705 = 511111431
BaseRepresentation
bin10111011000010001000001
3102112101000002
4113120101001
53032104310
6335205345
7103043642
oct27302101
912471002
106128705
113506650
122076855
13136776b
14b576c9
15810da5
hex5d8441

6128705 has 8 divisors (see below), whose sum is σ = 8023104. Its totient is φ = 4457200.

The previous prime is 6128693. The next prime is 6128723. The reversal of 6128705 is 5078216.

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

It is not a de Polignac number, because 6128705 - 212 = 6124609 is a prime.

It is a super-2 number, since 2×61287052 = 75122049954050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55661 + ... + 55770.

It is an arithmetic number, because the mean of its divisors is an integer number (1002888).

Almost surely, 26128705 is an apocalyptic number.

It is an amenable number.

6128705 is a deficient number, since it is larger than the sum of its proper divisors (1894399).

6128705 is a wasteful number, since it uses less digits than its factorization.

6128705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111447.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 6128705 is about 2475.6221440276. The cubic root of 6128705 is about 183.0021698410.

The spelling of 6128705 in words is "six million, one hundred twenty-eight thousand, seven hundred five".

Divisors: 1 5 11 55 111431 557155 1225741 6128705