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52639200 = 2533522437
BaseRepresentation
bin1100100011001…
…1010111100000
310200001100102000
43020303113200
5101433423300
65120124000
71206266025
oct310632740
9120040360
1052639200
1127793679
1215766600
13aba0773
146dc354c
15494bc00
hex32335e0

52639200 has 144 divisors (see below), whose sum is σ = 190456560. Its totient is φ = 14031360.

The previous prime is 52639189. The next prime is 52639211. The reversal of 52639200 is 293625.

52639200 is a `hidden beast` number, since 5 + 2 + 639 + 20 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (52639189) and next prime (52639211).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20382 + ... + 22818.

It is an arithmetic number, because the mean of its divisors is an integer number (1322615).

Almost surely, 252639200 is an apocalyptic number.

52639200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52639200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95228280).

52639200 is an abundant number, since it is smaller than the sum of its proper divisors (137817360).

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

52639200 is a wasteful number, since it uses less digits than its factorization.

52639200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2447 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 52639200 is about 7255.2877268927. The cubic root of 52639200 is about 374.7742641428.

The spelling of 52639200 in words is "fifty-two million, six hundred thirty-nine thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 72 75 80 90 96 100 108 120 135 144 150 160 180 200 216 225 240 270 288 300 360 400 432 450 480 540 600 675 720 800 864 900 1080 1200 1350 1440 1800 2160 2400 2437 2700 3600 4320 4874 5400 7200 7311 9748 10800 12185 14622 19496 21600 21933 24370 29244 36555 38992 43866 48740 58488 60925 65799 73110 77984 87732 97480 109665 116976 121850 131598 146220 175464 182775 194960 219330 233952 243700 263196 292440 328995 350928 365550 389920 438660 487400 526392 548325 584880 657990 701856 731100 877320 974800 1052784 1096650 1169760 1315980 1462200 1644975 1754640 1949600 2105568 2193300 2631960 2924400 3289950 3509280 4386600 5263920 5848800 6579900 8773200 10527840 13159800 17546400 26319600 52639200