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825972108 = 2231321412473
BaseRepresentation
bin110001001110110…
…101010110001100
32010120012201201120
4301032311112030
53142422101413
6213543240540
726316434643
oct6116652614
92116181646
10825972108
11394270085
121b0749150
131021776c0
147b9aa35a
154c7a7723
hex313b558c

825972108 has 48 divisors (see below), whose sum is σ = 2077328736. Its totient is φ = 253923840.

The previous prime is 825972107. The next prime is 825972131. The reversal of 825972108 is 801279528.

825972108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 825972108.

It is not an unprimeable number, because it can be changed into a prime (825972107) 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, 332760 + ... + 335232.

It is an arithmetic number, because the mean of its divisors is an integer number (43277682).

Almost surely, 2825972108 is an apocalyptic number.

It is an amenable number.

825972108 is an abundant number, since it is smaller than the sum of its proper divisors (1251356628).

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

825972108 is a wasteful number, since it uses less digits than its factorization.

825972108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 825972108 is about 28739.7304789032. The cubic root of 825972108 is about 938.2569584991.

The spelling of 825972108 in words is "eight hundred twenty-five million, nine hundred seventy-two thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2141 2473 4282 4946 6423 7419 8564 9892 12846 14838 25692 27833 29676 32149 55666 64298 83499 96447 111332 128596 166998 192894 333996 385788 5294693 10589386 15884079 21178772 31768158 63536316 68831009 137662018 206493027 275324036 412986054 825972108