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52019361 = 338232341
BaseRepresentation
bin1100011001110…
…0000010100001
310121212212011000
43012130002201
5101304104421
65054542213
71201104642
oct306340241
9117785130
1052019361
11273aaa09
1215507969
13aa145b4
146ca16c9
154878226
hex319c0a1

52019361 has 16 divisors (see below), whose sum is σ = 77192320. Its totient is φ = 34622640.

The previous prime is 52019351. The next prime is 52019389. The reversal of 52019361 is 16391025.

It is not a de Polignac number, because 52019361 - 29 = 52018849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52019351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21051 + ... + 23391.

It is an arithmetic number, because the mean of its divisors is an integer number (4824520).

Almost surely, 252019361 is an apocalyptic number.

It is an amenable number.

52019361 is a deficient number, since it is larger than the sum of its proper divisors (25172959).

52019361 is a wasteful number, since it uses less digits than its factorization.

52019361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 52019361 is about 7212.4448698066. Note that the first 3 decimals coincide. The cubic root of 52019361 is about 373.2974337469.

It can be divided in two parts, 520 and 19361, that added together give a square (19881 = 1412).

The spelling of 52019361 in words is "fifty-two million, nineteen thousand, three hundred sixty-one".

Divisors: 1 3 9 27 823 2341 2469 7023 7407 21069 22221 63207 1926643 5779929 17339787 52019361