Search a number
-
+
8068013172 = 2232224111477
BaseRepresentation
bin1111000001110010…
…00001110001110100
3202211021101112102200
413200321001301310
5113010402410142
63412325304500
7403634660202
oct74071016164
922737345380
108068013172
11347020178a
121691b65130
139b76674bb
14567730072
1532348264c
hex1e0e41c74

8068013172 has 18 divisors (see below), whose sum is σ = 20394144498. Its totient is φ = 2689337712.

The previous prime is 8068013167. The next prime is 8068013227. The reversal of 8068013172 is 2713108608.

It can be written as a sum of positive squares in only one way, i.e., 8063321616 + 4691556 = 89796^2 + 2166^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 224111477 = 8068013172 / (8 + 0 + 6 + 8 + 0 + 1 + 3 + 1 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112055703 + ... + 112055774.

Almost surely, 28068013172 is an apocalyptic number.

It is an amenable number.

8068013172 is an abundant number, since it is smaller than the sum of its proper divisors (12326131326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8068013172 is a wasteful number, since it uses less digits than its factorization.

8068013172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224111487 (or 224111482 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8068013172 is about 89822.1196142687. The cubic root of 8068013172 is about 2005.6517779917.

The spelling of 8068013172 in words is "eight billion, sixty-eight million, thirteen thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 224111477 448222954 672334431 896445908 1344668862 2017003293 2689337724 4034006586 8068013172