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538327580 = 225729671979
BaseRepresentation
bin100000000101100…
…011101000011100
31101111221212121112
4200011203220130
52100302440310
6125230121152
716224465110
oct4005435034
91344855545
10538327580
1125696552a
121303501b8
13876b463b
14516d1740
15323d9705
hex20163a1c

538327580 has 96 divisors (see below), whose sum is σ = 1357171200. Its totient is φ = 175456512.

The previous prime is 538327577. The next prime is 538327591. The reversal of 538327580 is 85723835.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 271031 + ... + 273009.

It is an arithmetic number, because the mean of its divisors is an integer number (14137200).

Almost surely, 2538327580 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 538327580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678585600).

538327580 is an abundant number, since it is smaller than the sum of its proper divisors (818843620).

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

538327580 is a wasteful number, since it uses less digits than its factorization.

538327580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 538327580 is about 23201.8874232249. The cubic root of 538327580 is about 813.4837403616.

The spelling of 538327580 in words is "five hundred thirty-eight million, three hundred twenty-seven thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 67 70 116 134 140 145 203 268 290 335 406 469 580 670 812 938 1015 1340 1876 1943 1979 2030 2345 3886 3958 4060 4690 7772 7916 9380 9715 9895 13601 13853 19430 19790 27202 27706 38860 39580 54404 55412 57391 68005 69265 114782 132593 136010 138530 229564 265186 272020 277060 286955 401737 530372 573910 662965 803474 928151 1147820 1325930 1606948 1856302 2008685 2651860 3712604 3845197 4017370 4640755 7690394 8034740 9281510 15380788 18563020 19225985 26916379 38451970 53832758 76903940 107665516 134581895 269163790 538327580