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30495899 = 724118077
BaseRepresentation
bin111010001010…
…1010010011011
32010101100111202
41310111102123
530301332044
63005344415
7520132220
oct164252233
963340452
1030495899
111623a025
12a26810b
136419915
14409b947
152a25c4e
hex1d1549b

30495899 has 8 divisors (see below), whose sum is σ = 34999008. Its totient is φ = 26029440.

The previous prime is 30495889. The next prime is 30495917. The reversal of 30495899 is 99859403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30495899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30495859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7352 + ... + 10725.

It is an arithmetic number, because the mean of its divisors is an integer number (4374876).

Almost surely, 230495899 is an apocalyptic number.

30495899 is a deficient number, since it is larger than the sum of its proper divisors (4503109).

30495899 is a wasteful number, since it uses less digits than its factorization.

30495899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18325.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 30495899 is about 5522.3092090175. The cubic root of 30495899 is about 312.4259843908.

The spelling of 30495899 in words is "thirty million, four hundred ninety-five thousand, eight hundred ninety-nine".

Divisors: 1 7 241 1687 18077 126539 4356557 30495899