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52012260 = 22335611579
BaseRepresentation
bin1100011001101…
…0010011100100
310121212111102000
43012122103210
5101303343020
65054445300
71201045146
oct306322344
9117774360
1052012260
11273a5643
1215503830
13aa112b1
146c9cc96
154876090
hex319a4e4

52012260 has 96 divisors (see below), whose sum is σ = 164572800. Its totient is φ = 13633920.

The previous prime is 52012249. The next prime is 52012349. The reversal of 52012260 is 6221025.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32151 + ... + 33729.

It is an arithmetic number, because the mean of its divisors is an integer number (1714300).

Almost surely, 252012260 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 52012260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82286400).

52012260 is an abundant number, since it is smaller than the sum of its proper divisors (112560540).

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

52012260 is a wasteful number, since it uses less digits than its factorization.

52012260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52012260 is about 7211.9525788790. The cubic root of 52012260 is about 373.2804470862.

Adding to 52012260 its reverse (6221025), we get a palindrome (58233285).

The spelling of 52012260 in words is "fifty-two million, twelve thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 61 90 108 122 135 180 183 244 270 305 366 540 549 610 732 915 1098 1220 1579 1647 1830 2196 2745 3158 3294 3660 4737 5490 6316 6588 7895 8235 9474 10980 14211 15790 16470 18948 23685 28422 31580 32940 42633 47370 56844 71055 85266 94740 96319 142110 170532 192638 213165 284220 288957 385276 426330 481595 577914 852660 866871 963190 1155828 1444785 1733742 1926380 2600613 2889570 3467484 4334355 5201226 5779140 8668710 10402452 13003065 17337420 26006130 52012260