Search a number
-
+
30708858389 = 117338242663
BaseRepresentation
bin11100100110011000…
…111111111000010101
32221021011010122021112
4130212120333320111
51000342431432024
622035113224405
72134664663246
oct344630777025
987234118245
1030708858389
1112029393910
125b50402105
132b851b6531
1416b464accd
15beae9b00e
hex72663fe15

30708858389 has 8 divisors (see below), whose sum is σ = 33959485632. Its totient is φ = 27534716640.

The previous prime is 30708858377. The next prime is 30708858413. The reversal of 30708858389 is 98385880703.

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

It is a cyclic number.

It is not a de Polignac number, because 30708858389 - 28 = 30708858133 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 (30708858359) 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, 19120529 + ... + 19122134.

It is an arithmetic number, because the mean of its divisors is an integer number (4244935704).

Almost surely, 230708858389 is an apocalyptic number.

It is an amenable number.

30708858389 is a deficient number, since it is larger than the sum of its proper divisors (3250627243).

30708858389 is a wasteful number, since it uses less digits than its factorization.

30708858389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38242747.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 30708858389 in words is "thirty billion, seven hundred eight million, eight hundred fifty-eight thousand, three hundred eighty-nine".

Divisors: 1 11 73 803 38242663 420669293 2791714399 30708858389