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30684134 = 2131180159
BaseRepresentation
bin111010100001…
…1001111100110
32010201220201102
41311003033212
530323343014
63013400102
7521545055
oct165031746
963656642
1030684134
1116358498
12a339032
1364844c0
14410a39c
152a618de
hex1d433e6

30684134 has 8 divisors (see below), whose sum is σ = 49566720. Its totient is φ = 14161896.

The previous prime is 30684127. The next prime is 30684151. The reversal of 30684134 is 43148603.

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

It is a junction number, because it is equal to n+sod(n) for n = 30684097 and 30684106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590054 + ... + 590105.

It is an arithmetic number, because the mean of its divisors is an integer number (6195840).

Almost surely, 230684134 is an apocalyptic number.

30684134 is a deficient number, since it is larger than the sum of its proper divisors (18882586).

30684134 is a wasteful number, since it uses less digits than its factorization.

30684134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180174.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30684134 is about 5539.3261323017. The cubic root of 30684134 is about 313.0674795903.

The spelling of 30684134 in words is "thirty million, six hundred eighty-four thousand, one hundred thirty-four".

Divisors: 1 2 13 26 1180159 2360318 15342067 30684134