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52250120 = 23513891129
BaseRepresentation
bin1100011101010…
…0011000001000
310122022120200122
43013110120020
5101334000440
65103522412
71203055466
oct307243010
9118276618
1052250120
112754831a
12155b9408
13aa95640
146d21836
1548c17b5
hex31d4608

52250120 has 64 divisors (see below), whose sum is σ = 128142000. Its totient is φ = 19058688.

The previous prime is 52250119. The next prime is 52250123. The reversal of 52250120 is 2105225.

It can be written as a sum of positive squares in 8 ways, for example, as 611524 + 51638596 = 782^2 + 7186^2 .

It is not an unprimeable number, because it can be changed into a prime (52250123) 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, 45716 + ... + 46844.

Almost surely, 252250120 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 52250120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64071000).

52250120 is an abundant number, since it is smaller than the sum of its proper divisors (75891880).

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

52250120 is a wasteful number, since it uses less digits than its factorization.

52250120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 52250120 is about 7228.4244479693. The cubic root of 52250120 is about 373.8486046847.

Adding to 52250120 its reverse (2105225), we get a palindrome (54355345).

The spelling of 52250120 in words is "fifty-two million, two hundred fifty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 89 104 130 178 260 356 445 520 712 890 1129 1157 1780 2258 2314 3560 4516 4628 5645 5785 9032 9256 11290 11570 14677 22580 23140 29354 45160 46280 58708 73385 100481 117416 146770 200962 293540 401924 502405 587080 803848 1004810 1306253 2009620 2612506 4019240 5225012 6531265 10450024 13062530 26125060 52250120