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538683120 = 243252925799
BaseRepresentation
bin100000000110111…
…010011011110000
31101112121221022200
4200012322123300
52100400324440
6125241503200
716230505503
oct4006723360
91345557280
10538683120
11257088668
121304a1b00
13877aa411
145178513a
1532459c30
hex201ba6f0

538683120 has 120 divisors (see below), whose sum is σ = 1871532000. Its totient is φ = 138690048.

The previous prime is 538683077. The next prime is 538683139. The reversal of 538683120 is 21386835.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 7981 + ... + 33779.

It is an arithmetic number, because the mean of its divisors is an integer number (15596100).

Almost surely, 2538683120 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 538683120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935766000).

538683120 is an abundant number, since it is smaller than the sum of its proper divisors (1332848880).

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

538683120 is a wasteful number, since it uses less digits than its factorization.

538683120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25847 (or 25838 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 538683120 is about 23209.5480352376. The cubic root of 538683120 is about 813.6627901755.

The spelling of 538683120 in words is "five hundred thirty-eight million, six hundred eighty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 36 40 45 48 58 60 72 80 87 90 116 120 144 145 174 180 232 240 261 290 348 360 435 464 522 580 696 720 870 1044 1160 1305 1392 1740 2088 2320 2610 3480 4176 5220 6960 10440 20880 25799 51598 77397 103196 128995 154794 206392 232191 257990 309588 386985 412784 464382 515980 619176 748171 773970 928764 1031960 1160955 1238352 1496342 1547940 1857528 2063920 2244513 2321910 2992684 3095880 3715056 3740855 4489026 4643820 5985368 6191760 6733539 7481710 8978052 9287640 11222565 11970736 13467078 14963420 17956104 18575280 22445130 26934156 29926840 33667695 35912208 44890260 53868312 59853680 67335390 89780520 107736624 134670780 179561040 269341560 538683120