Search a number
-
+
30919099 = 197920599
BaseRepresentation
bin111010111110…
…0100110111011
32011011212000211
41311330212323
530403402344
63022411551
7523544101
oct165744673
964155024
1030919099
11164a8a82
12a430bb7
136537433
14416bc71
152aab334
hex1d7c9bb

30919099 has 8 divisors (see below), whose sum is σ = 32960000. Its totient is φ = 28919592.

The previous prime is 30919081. The next prime is 30919117. The reversal of 30919099 is 99091903.

It is an interprime number because it is at equal distance from previous prime (30919081) and next prime (30919117).

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 30919099 - 217 = 30788027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30979099) 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 7 ways as a sum of consecutive naturals, for example, 8799 + ... + 11800.

It is an arithmetic number, because the mean of its divisors is an integer number (4120000).

Almost surely, 230919099 is an apocalyptic number.

30919099 is a deficient number, since it is larger than the sum of its proper divisors (2040901).

30919099 is a wasteful number, since it uses less digits than its factorization.

30919099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20697.

The product of its (nonzero) digits is 19683, while the sum is 40.

The square root of 30919099 is about 5560.4944923990. The cubic root of 30919099 is about 313.8645574594.

The spelling of 30919099 in words is "thirty million, nine hundred nineteen thousand, ninety-nine".

Divisors: 1 19 79 1501 20599 391381 1627321 30919099