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30549932 = 2272791973
BaseRepresentation
bin111010010001…
…0011110101100
32010111002121222
41310202132230
530310044212
63010442512
7520445600
oct164423654
963432558
1030549932
1116276686
12a293438
1364383aa
1440b3500
152a36c72
hex1d227ac

30549932 has 36 divisors (see below), whose sum is σ = 63010080. Its totient is φ = 12920544.

The previous prime is 30549919. The next prime is 30549941. The reversal of 30549932 is 23994503.

It is a junction number, because it is equal to n+sod(n) for n = 30549892 and 30549901.

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 11 ways as a sum of consecutive naturals, for example, 14498 + ... + 16470.

It is an arithmetic number, because the mean of its divisors is an integer number (1750280).

Almost surely, 230549932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30549932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31505040).

30549932 is an abundant number, since it is smaller than the sum of its proper divisors (32460148).

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

30549932 is a wasteful number, since it uses less digits than its factorization.

30549932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070 (or 2061 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 30549932 is about 5527.1992907801. The cubic root of 30549932 is about 312.6103955564.

The spelling of 30549932 in words is "thirty million, five hundred forty-nine thousand, nine hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 79 98 158 196 316 553 1106 1973 2212 3871 3946 7742 7892 13811 15484 27622 55244 96677 155867 193354 311734 386708 623468 1091069 2182138 4364276 7637483 15274966 30549932