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30186514 = 252328859
BaseRepresentation
bin111001100100…
…1110000010010
32002210122010001
41303021300102
530211432024
62555000214
7514403221
oct163116022
962718101
1030186514
1116048636
12a13906a
13633bb57
14401acb8
1529b4244
hex1cc9c12

30186514 has 8 divisors (see below), whose sum is σ = 45367920. Its totient is φ = 15063876.

The previous prime is 30186493. The next prime is 30186523. The reversal of 30186514 is 41568103.

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

It is a super-2 number, since 2×301865142 = 1822451254944392, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 13384 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (5670990).

Almost surely, 230186514 is an apocalyptic number.

30186514 is a deficient number, since it is larger than the sum of its proper divisors (15181406).

30186514 is a wasteful number, since it uses less digits than its factorization.

30186514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29384.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 30186514 is about 5494.2255141193. The cubic root of 30186514 is about 311.3658566666.

The spelling of 30186514 in words is "thirty million, one hundred eighty-six thousand, five hundred fourteen".

Divisors: 1 2 523 1046 28859 57718 15093257 30186514