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52543983 = 3232113293
BaseRepresentation
bin1100100001110…
…0000111101111
310122212111210110
43020130013233
5101422401413
65114111103
71205421312
oct310340757
9118774713
1052543983
1127729088
121571b493
13ab6931b
146d9a979
15492d8c3
hex321c1ef

52543983 has 24 divisors (see below), whose sum is σ = 74137392. Its totient is φ = 33096448.

The previous prime is 52543973. The next prime is 52543993. The reversal of 52543983 is 38934525.

It is an interprime number because it is at equal distance from previous prime (52543973) and next prime (52543993).

It is not a de Polignac number, because 52543983 - 28 = 52543727 is a prime.

Its product of digits (129600) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52543913) 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, 179185 + ... + 179477.

It is an arithmetic number, because the mean of its divisors is an integer number (3089058).

Almost surely, 252543983 is an apocalyptic number.

52543983 is a deficient number, since it is larger than the sum of its proper divisors (21593409).

52543983 is a wasteful number, since it uses less digits than its factorization.

52543983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 432 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 52543983 is about 7248.7228530273. The cubic root of 52543983 is about 374.5481562290.

The spelling of 52543983 in words is "fifty-two million, five hundred forty-three thousand, nine hundred eighty-three".

Divisors: 1 3 23 69 113 293 339 529 879 1587 2599 6739 7797 20217 33109 59777 99327 154997 179331 464991 761507 2284521 17514661 52543983