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30808582382 = 215404291191
BaseRepresentation
bin11100101100010101…
…011010100011101110
32221112002210010212202
4130230111122203232
51001043444114012
622053034501502
72140315425614
oct345425324356
987462703782
1030808582382
111207a706a36
125b79894892
132b9ca61506
1416c39a96b4
15c04ae8cc2
hex72c55a8ee

30808582382 has 4 divisors (see below), whose sum is σ = 46212873576. Its totient is φ = 15404291190.

The previous prime is 30808582381. The next prime is 30808582411. The reversal of 30808582382 is 28328580803.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30808582381) 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 as a sum of consecutive naturals, namely, 7702145594 + ... + 7702145597.

It is an arithmetic number, because the mean of its divisors is an integer number (11553218394).

Almost surely, 230808582382 is an apocalyptic number.

30808582382 is a deficient number, since it is larger than the sum of its proper divisors (15404291194).

30808582382 is a wasteful number, since it uses less digits than its factorization.

30808582382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15404291193.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 30808582382 in words is "thirty billion, eight hundred eight million, five hundred eighty-two thousand, three hundred eighty-two".

Divisors: 1 2 15404291191 30808582382