Search a number
-
+
8612419385 = 517101322581
BaseRepresentation
bin10000000010101011…
…10001011100111001
3211020012210020100202
420001111301130321
5120114234410020
63542334011545
7423265233263
oct100125613471
924205706322
108612419385
11371a539179
121804346bb5
13a7339985b
145b9b64b33
1535616ce75
hex201571739

8612419385 has 8 divisors (see below), whose sum is σ = 10942838856. Its totient is φ = 6484645120.

The previous prime is 8612419381. The next prime is 8612419399. The reversal of 8612419385 is 5839142168.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 126877696 + 8485541689 = 11264^2 + 92117^2 .

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

It is not a de Polignac number, because 8612419385 - 22 = 8612419381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8612419381) 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, 50661206 + ... + 50661375.

It is an arithmetic number, because the mean of its divisors is an integer number (1367854857).

Almost surely, 28612419385 is an apocalyptic number.

8612419385 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8612419385 is a deficient number, since it is larger than the sum of its proper divisors (2330419471).

8612419385 is a wasteful number, since it uses less digits than its factorization.

8612419385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101322603.

The product of its digits is 414720, while the sum is 47.

The square root of 8612419385 is about 92803.1216339192. The cubic root of 8612419385 is about 2049.7853739214.

The spelling of 8612419385 in words is "eight billion, six hundred twelve million, four hundred nineteen thousand, three hundred eighty-five".

Divisors: 1 5 17 85 101322581 506612905 1722483877 8612419385