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30671214 = 2373123557
BaseRepresentation
bin111010100000…
…0000101101110
32010201020222220
41311000011232
530322434324
63013220210
7521462310
oct165000556
963636886
1030671214
1116349812
12a331666
13647b662
1441057b0
152a5cb79
hex1d4016e

30671214 has 32 divisors (see below), whose sum is σ = 72370176. Its totient is φ = 8480160.

The previous prime is 30671191. The next prime is 30671233. The reversal of 30671214 is 41217603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10477 + ... + 13080.

It is an arithmetic number, because the mean of its divisors is an integer number (2261568).

Almost surely, 230671214 is an apocalyptic number.

30671214 is an abundant number, since it is smaller than the sum of its proper divisors (41698962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30671214 is a wasteful number, since it uses less digits than its factorization.

30671214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23600.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30671214 is about 5538.1598026781. The cubic root of 30671214 is about 313.0235328862.

Adding to 30671214 its reverse (41217603), we get a palindrome (71888817).

The spelling of 30671214 in words is "thirty million, six hundred seventy-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 651 1302 23557 47114 70671 141342 164899 329798 494697 730267 989394 1460534 2190801 4381602 5111869 10223738 15335607 30671214