Search a number
-
+
30182019 = 371437239
BaseRepresentation
bin111001100100…
…0101010000011
32002210101221120
41303020222003
530211311034
62554523323
7514354140
oct163105203
962711846
1030182019
111604521a
12a136543
136339aaa
1440193c7
1529b2c49
hex1cc8a83

30182019 has 8 divisors (see below), whose sum is σ = 45991680. Its totient is φ = 17246856.

The previous prime is 30181999. The next prime is 30182023. The reversal of 30182019 is 91028103.

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

It is not a de Polignac number, because 30182019 - 27 = 30181891 is a prime.

It is a super-2 number, since 2×301820192 = 1821908541832722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30182019.

It is not an unprimeable number, because it can be changed into a prime (30132019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 718599 + ... + 718640.

It is an arithmetic number, because the mean of its divisors is an integer number (5748960).

Almost surely, 230182019 is an apocalyptic number.

30182019 is a deficient number, since it is larger than the sum of its proper divisors (15809661).

30182019 is a wasteful number, since it uses less digits than its factorization.

30182019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437249.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 30182019 is about 5493.8164330454. The cubic root of 30182019 is about 311.3504009899.

The spelling of 30182019 in words is "thirty million, one hundred eighty-two thousand, nineteen".

Divisors: 1 3 7 21 1437239 4311717 10060673 30182019