Search a number
-
+
688396083 = 31229186709
BaseRepresentation
bin101001000010000…
…001011100110011
31202222100010220020
4221002001130303
52402212133313
6152150414523
723026161444
oct5102013463
91688303806
10688396083
11323644191
12172661443
13ac80877b
14675d72cb
154067e323
hex29081733

688396083 has 8 divisors (see below), whose sum is σ = 918613200. Its totient is φ = 458554848.

The previous prime is 688396061. The next prime is 688396139. The reversal of 688396083 is 380693886.

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

It is not a de Polignac number, because 688396083 - 26 = 688396019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688396183) 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, 89668 + ... + 97041.

It is an arithmetic number, because the mean of its divisors is an integer number (114826650).

Almost surely, 2688396083 is an apocalyptic number.

688396083 is a deficient number, since it is larger than the sum of its proper divisors (230217117).

688396083 is a wasteful number, since it uses less digits than its factorization.

688396083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187941.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 688396083 is about 26237.3032722496. The cubic root of 688396083 is about 882.9703700982.

The spelling of 688396083 in words is "six hundred eighty-eight million, three hundred ninety-six thousand, eighty-three".

Divisors: 1 3 1229 3687 186709 560127 229465361 688396083