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30839194 = 217986143
BaseRepresentation
bin111010110100…
…1000110011010
32011000210102101
41311221012122
530343323234
63020554014
7523062121
oct165510632
964023371
1030839194
1116453a41
12a3b290a
136509c59
14414aab8
152a92814
hex1d6919a

30839194 has 8 divisors (see below), whose sum is σ = 46517760. Its totient is φ = 15333276.

The previous prime is 30839189. The next prime is 30839197. The reversal of 30839194 is 49193803.

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

It is not an unprimeable number, because it can be changed into a prime (30839197) 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 3 ways as a sum of consecutive naturals, for example, 42714 + ... + 43429.

It is an arithmetic number, because the mean of its divisors is an integer number (5814720).

Almost surely, 230839194 is an apocalyptic number.

30839194 is a deficient number, since it is larger than the sum of its proper divisors (15678566).

30839194 is a wasteful number, since it uses less digits than its factorization.

30839194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86324.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 30839194 is about 5553.3047818394. The cubic root of 30839194 is about 313.5939482055.

The spelling of 30839194 in words is "thirty million, eight hundred thirty-nine thousand, one hundred ninety-four".

Divisors: 1 2 179 358 86143 172286 15419597 30839194