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394332130 = 2573540181
BaseRepresentation
bin10111100000010…
…000011111100010
31000111000010222201
4113200100133202
51301422112010
6103043523414
712525524233
oct2740203742
91014003881
10394332130
11192654625
12b008956a
136390882a
143a52b08a
152494423a
hex178107e2

394332130 has 16 divisors (see below), whose sum is σ = 719522424. Its totient is φ = 155571840.

The previous prime is 394332089. The next prime is 394332143. The reversal of 394332130 is 31233493.

It can be written as a sum of positive squares in 4 ways, for example, as 193571569 + 200760561 = 13913^2 + 14169^2 .

It is an unprimeable number.

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, 269361 + ... + 270820.

Almost surely, 2394332130 is an apocalyptic number.

394332130 is a deficient number, since it is larger than the sum of its proper divisors (325190294).

394332130 is a wasteful number, since it uses less digits than its factorization.

394332130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540261.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 394332130 is about 19857.7977127374. The cubic root of 394332130 is about 733.3096298583.

The spelling of 394332130 in words is "three hundred ninety-four million, three hundred thirty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 73 146 365 730 540181 1080362 2700905 5401810 39433213 78866426 197166065 394332130