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52545983 = 721072367
BaseRepresentation
bin1100100001110…
…0100110111111
310122212121112112
43020130212333
5101422432413
65114124235
71205430200
oct310344677
9118777475
1052545983
112772a636
121572067b
13ab6a1c9
146d9b5a7
15492e2a8
hex321c9bf

52545983 has 6 divisors (see below), whose sum is σ = 61124976. Its totient is φ = 45039372.

The previous prime is 52545979. The next prime is 52545989. The reversal of 52545983 is 38954525.

It is not a de Polignac number, because 52545983 - 22 = 52545979 is a prime.

It is a super-2 number, since 2×525459832 = 5522160658872578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52545983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52545989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 536135 + ... + 536232.

It is an arithmetic number, because the mean of its divisors is an integer number (10187496).

Almost surely, 252545983 is an apocalyptic number.

52545983 is a deficient number, since it is larger than the sum of its proper divisors (8578993).

52545983 is a wasteful number, since it uses less digits than its factorization.

52545983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072381 (or 1072374 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 52545983 is about 7248.8608070510. The cubic root of 52545983 is about 374.5529083545.

The spelling of 52545983 in words is "fifty-two million, five hundred forty-five thousand, nine hundred eighty-three".

Divisors: 1 7 49 1072367 7506569 52545983