Search a number
-
+
30308136909 = 323439248361
BaseRepresentation
bin11100001110100000…
…010111011111001101
32220020020002212202020
4130032200113133031
5444032340340114
621531240320353
72122030625121
oct341640273715
986206085666
1030308136909
1111943175936
125a5a1730b9
132b2018172b
141677339581
15bc5be3aa9
hex70e8177cd

30308136909 has 8 divisors (see below), whose sum is σ = 42167842752. Its totient is φ = 19326927840.

The previous prime is 30308136853. The next prime is 30308136931. The reversal of 30308136909 is 90963180303.

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

It is not a de Polignac number, because 30308136909 - 228 = 30039701453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30308136109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219624112 + ... + 219624249.

It is an arithmetic number, because the mean of its divisors is an integer number (5270980344).

Almost surely, 230308136909 is an apocalyptic number.

It is an amenable number.

30308136909 is a deficient number, since it is larger than the sum of its proper divisors (11859705843).

30308136909 is a wasteful number, since it uses less digits than its factorization.

30308136909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439248387.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 30308136909 in words is "thirty billion, three hundred eight million, one hundred thirty-six thousand, nine hundred nine".

Divisors: 1 3 23 69 439248361 1317745083 10102712303 30308136909