Search a number
-
+
30182236 = 2272153991
BaseRepresentation
bin111001100100…
…0101101011100
32002210102020121
41303020231130
530211312421
62554524324
7514354600
oct163105534
962712217
1030182236
11160453a7
12a1366a4
136339c16
144019500
1529b2d41
hex1cc8b5c

30182236 has 18 divisors (see below), whose sum is σ = 61442808. Its totient is φ = 12935160.

The previous prime is 30182213. The next prime is 30182249. The reversal of 30182236 is 63228103.

It is a self number, because there is not a number n which added to its sum of digits gives 30182236.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76800 + ... + 77191.

Almost surely, 230182236 is an apocalyptic number.

It is an amenable number.

30182236 is an abundant number, since it is smaller than the sum of its proper divisors (31260572).

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

30182236 is a wasteful number, since it uses less digits than its factorization.

30182236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154009 (or 154000 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30182236 is about 5493.8361824867. The cubic root of 30182236 is about 311.3511471613.

The spelling of 30182236 in words is "thirty million, one hundred eighty-two thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 49 98 196 153991 307982 615964 1077937 2155874 4311748 7545559 15091118 30182236