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52783643 = 1123208631
BaseRepresentation
bin1100100101011…
…0101000011011
310200022200112202
43021112220123
5102003034033
65123200415
71210440113
oct311265033
9120280482
1052783643
1127882150
121581610b
13ac21433
147020043
1549798e8
hex3256a1b

52783643 has 8 divisors (see below), whose sum is σ = 60086016. Its totient is φ = 45898600.

The previous prime is 52783639. The next prime is 52783649. The reversal of 52783643 is 34638725.

52783643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52783643 - 22 = 52783639 is a prime.

It is a super-2 number, since 2×527836432 = 5572225936702898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52783597 and 52783606.

It is not an unprimeable number, because it can be changed into a prime (52783649) 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 7 ways as a sum of consecutive naturals, for example, 104063 + ... + 104568.

It is an arithmetic number, because the mean of its divisors is an integer number (7510752).

Almost surely, 252783643 is an apocalyptic number.

52783643 is a deficient number, since it is larger than the sum of its proper divisors (7302373).

52783643 is a wasteful number, since it uses less digits than its factorization.

52783643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208665.

The product of its digits is 120960, while the sum is 38.

The square root of 52783643 is about 7265.2352336315. The cubic root of 52783643 is about 375.1167470573.

The spelling of 52783643 in words is "fifty-two million, seven hundred eighty-three thousand, six hundred forty-three".

Divisors: 1 11 23 253 208631 2294941 4798513 52783643