Search a number
-
+
768069903 = 3256023301
BaseRepresentation
bin101101110001111…
…101000100001111
31222112020222211110
4231301331010033
53033111214103
6204114223103
725014325566
oct5561750417
91875228743
10768069903
11364612317
12195284a93
13c3183543
1474016bdd
154766b403
hex2dc7d10f

768069903 has 4 divisors (see below), whose sum is σ = 1024093208. Its totient is φ = 512046600.

The previous prime is 768069839. The next prime is 768069923. The reversal of 768069903 is 309960867.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309960867 = 3103320289.

It is not a de Polignac number, because 768069903 - 26 = 768069839 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 (768069923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128011648 + ... + 128011653.

It is an arithmetic number, because the mean of its divisors is an integer number (256023302).

Almost surely, 2768069903 is an apocalyptic number.

768069903 is a deficient number, since it is larger than the sum of its proper divisors (256023305).

768069903 is a wasteful number, since it uses less digits than its factorization.

768069903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256023304.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 768069903 is about 27714.0740960257. The cubic root of 768069903 is about 915.7991775607.

The spelling of 768069903 in words is "seven hundred sixty-eight million, sixty-nine thousand, nine hundred three".

Divisors: 1 3 256023301 768069903