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52315620 = 22357124561
BaseRepresentation
bin1100011110010…
…0010111100100
310122102220112120
43013210113210
5101343044440
65105145540
71203450450
oct307442744
9118386476
1052315620
1127592555
121562b2b0
13aab93b6
146d3b660
1548d5dd0
hex31e45e4

52315620 has 48 divisors (see below), whose sum is σ = 167411328. Its totient is φ = 11957760.

The previous prime is 52315619. The next prime is 52315621. The reversal of 52315620 is 2651325.

52315620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52315619) and next prime (52315621).

It is not an unprimeable number, because it can be changed into a prime (52315621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61861 + ... + 62700.

It is an arithmetic number, because the mean of its divisors is an integer number (3487736).

Almost surely, 252315620 is an apocalyptic number.

It is an amenable number.

52315620 is an abundant number, since it is smaller than the sum of its proper divisors (115095708).

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

52315620 is a wasteful number, since it uses less digits than its factorization.

52315620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124580 (or 124578 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 52315620 is about 7232.9537534814. The cubic root of 52315620 is about 374.0047565334.

Adding to 52315620 its reverse (2651325), we get a palindrome (54966945).

The spelling of 52315620 in words is "fifty-two million, three hundred fifteen thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 124561 249122 373683 498244 622805 747366 871927 1245610 1494732 1743854 1868415 2491220 2615781 3487708 3736830 4359635 5231562 7473660 8719270 10463124 13078905 17438540 26157810 52315620