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52443405 = 3257166487
BaseRepresentation
bin1100100000001…
…1100100001101
310122200101211100
43020003210031
5101411142110
65112013313
71204522140
oct310034415
9118611740
1052443405
112766a563
1215691239
13ab32601
146d72057
15490dbc0
hex320390d

52443405 has 24 divisors (see below), whose sum is σ = 103888512. Its totient is φ = 23973984.

The previous prime is 52443371. The next prime is 52443409. The reversal of 52443405 is 50434425.

It is not a de Polignac number, because 52443405 - 27 = 52443277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52443409) 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, 82929 + ... + 83558.

It is an arithmetic number, because the mean of its divisors is an integer number (4328688).

Almost surely, 252443405 is an apocalyptic number.

It is an amenable number.

52443405 is a deficient number, since it is larger than the sum of its proper divisors (51445107).

52443405 is a wasteful number, since it uses less digits than its factorization.

52443405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166505 (or 166502 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 52443405 is about 7241.7818939816. The cubic root of 52443405 is about 374.3090209097.

It can be divided in two parts, 5244 and 3405, that added together give a square (8649 = 932).

The spelling of 52443405 in words is "fifty-two million, four hundred forty-three thousand, four hundred five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 166487 499461 832435 1165409 1498383 2497305 3496227 5827045 7491915 10488681 17481135 52443405