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30384822 = 2313794931
BaseRepresentation
bin111001111101…
…0001010110110
32010011201010210
41303322022312
530234303242
63003130250
7516160326
oct163721266
963151123
1030384822
1116173626
12a213986
1363ab1b0
14406d286
152a02d9c
hex1cfa2b6

30384822 has 32 divisors (see below), whose sum is σ = 66286080. Its totient is φ = 9228960.

The previous prime is 30384821. The next prime is 30384829. The reversal of 30384822 is 22848303.

It is a self number, because there is not a number n which added to its sum of digits gives 30384822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30384821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3697 + ... + 8627.

It is an arithmetic number, because the mean of its divisors is an integer number (2071440).

Almost surely, 230384822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30384822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33143040).

30384822 is an abundant number, since it is smaller than the sum of its proper divisors (35901258).

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

30384822 is a wasteful number, since it uses less digits than its factorization.

30384822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 30384822 is about 5512.2429191755. The cubic root of 30384822 is about 312.0462004233.

The spelling of 30384822 in words is "thirty million, three hundred eighty-four thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 79 158 237 474 1027 2054 3081 4931 6162 9862 14793 29586 64103 128206 192309 384618 389549 779098 1168647 2337294 5064137 10128274 15192411 30384822