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52302260 = 2252615113
BaseRepresentation
bin1100011110000…
…1000110110100
310122102020012202
43013201012310
5101342133020
65105004032
71203363503
oct307410664
9118366182
1052302260
112758350a
1215623618
13aab32aa
146d3683a
1548d1e75
hex31e11b4

52302260 has 12 divisors (see below), whose sum is σ = 109834788. Its totient is φ = 20920896.

The previous prime is 52302259. The next prime is 52302317. The reversal of 52302260 is 6220325.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12208036 + 40094224 = 3494^2 + 6332^2 .

It is a super-2 number, since 2×523022602 = 5471052802215200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2615113 = 52302260 / (5 + 2 + 3 + 0 + 2 + 2 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307537 + ... + 1307576.

It is an arithmetic number, because the mean of its divisors is an integer number (9152899).

Almost surely, 252302260 is an apocalyptic number.

It is an amenable number.

52302260 is an abundant number, since it is smaller than the sum of its proper divisors (57532528).

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

52302260 is a wasteful number, since it uses less digits than its factorization.

52302260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615122 (or 2615120 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 52302260 is about 7232.0301437425. The cubic root of 52302260 is about 373.9729169098.

Adding to 52302260 its reverse (6220325), we get a palindrome (58522585).

The spelling of 52302260 in words is "fifty-two million, three hundred two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 2615113 5230226 10460452 13075565 26151130 52302260