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30684117 = 329352691
BaseRepresentation
bin111010100001…
…1001111010101
32010201220200210
41311003033111
530323342432
63013400033
7521545032
oct165031725
963656623
1030684117
1116358482
12a339019
1364844a9
14410a389
152a618cc
hex1d433d5

30684117 has 8 divisors (see below), whose sum is σ = 42323040. Its totient is φ = 19750640.

The previous prime is 30684109. The next prime is 30684127. The reversal of 30684117 is 71148603.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30684117 - 23 = 30684109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30684127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176259 + ... + 176432.

It is an arithmetic number, because the mean of its divisors is an integer number (5290380).

Almost surely, 230684117 is an apocalyptic number.

It is an amenable number.

30684117 is a deficient number, since it is larger than the sum of its proper divisors (11638923).

30684117 is a wasteful number, since it uses less digits than its factorization.

30684117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352723.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 30684117 is about 5539.3245978188. The cubic root of 30684117 is about 313.0674217738.

The spelling of 30684117 in words is "thirty million, six hundred eighty-four thousand, one hundred seventeen".

Divisors: 1 3 29 87 352691 1058073 10228039 30684117