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52816743 = 3272928909
BaseRepresentation
bin1100100101111…
…0101101100111
310200101100221200
43021132231213
5102010113433
65124013543
71210635450
oct311365547
9120340850
1052816743
11278a5001
12158312b3
13ac33515
14702c127
154984613
hex325eb67

52816743 has 24 divisors (see below), whose sum is σ = 90199200. Its totient is φ = 29139264.

The previous prime is 52816721. The next prime is 52816747. The reversal of 52816743 is 34761825.

It is not a de Polignac number, because 52816743 - 213 = 52808551 is a prime.

It is a super-2 number, since 2×528167432 = 5579216682256098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52816698 and 52816707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52816747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12628 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (3758300).

Almost surely, 252816743 is an apocalyptic number.

52816743 is a deficient number, since it is larger than the sum of its proper divisors (37382457).

52816743 is a wasteful number, since it uses less digits than its factorization.

52816743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28951 (or 28948 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 52816743 is about 7267.5128482859. The cubic root of 52816743 is about 375.1951411023.

It can be divided in two parts, 528 and 16743, that added together give a palindrome (17271).

The spelling of 52816743 in words is "fifty-two million, eight hundred sixteen thousand, seven hundred forty-three".

Divisors: 1 3 7 9 21 29 63 87 203 261 609 1827 28909 86727 202363 260181 607089 838361 1821267 2515083 5868527 7545249 17605581 52816743