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52312120 = 2357238123
BaseRepresentation
bin1100011110001…
…1100000111000
310122102201201221
43013203200320
5101342441440
65105121424
71203434320
oct307434070
9118381657
1052312120
112758a963
1215629274
13aab7923
146d3a280
1548d4d4a
hex31e3838

52312120 has 64 divisors (see below), whose sum is σ = 140382720. Its totient is φ = 17153664.

The previous prime is 52312109. The next prime is 52312121. The reversal of 52312120 is 2121325.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 52312094 and 52312103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52312121) 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, 2379 + ... + 10501.

It is an arithmetic number, because the mean of its divisors is an integer number (2193480).

Almost surely, 252312120 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 52312120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70191360).

52312120 is an abundant number, since it is smaller than the sum of its proper divisors (88070600).

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

52312120 is a wasteful number, since it uses less digits than its factorization.

52312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164 (or 8160 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52312120 is about 7232.7118012541. The cubic root of 52312120 is about 373.9964158388.

Adding to 52312120 its reverse (2121325), we get a palindrome (54433445).

The spelling of 52312120 in words is "fifty-two million, three hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 23 28 35 40 46 56 70 92 115 140 161 184 230 280 322 460 644 805 920 1288 1610 3220 6440 8123 16246 32492 40615 56861 64984 81230 113722 162460 186829 227444 284305 324920 373658 454888 568610 747316 934145 1137220 1307803 1494632 1868290 2274440 2615606 3736580 5231212 6539015 7473160 10462424 13078030 26156060 52312120