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52020272 = 2417191251
BaseRepresentation
bin1100011001110…
…0010000110000
310121212220101202
43012130100300
5101304122042
65054550332
71201110413
oct306342060
9117786352
1052020272
1127400667
12155083a8
13aa14b35
146ca1b7a
154878632
hex319c430

52020272 has 20 divisors (see below), whose sum is σ = 106718616. Its totient is φ = 24480000.

The previous prime is 52020259. The next prime is 52020281. The reversal of 52020272 is 27202025.

It is a super-2 number, since 2×520202722 = 5412217397907968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95354 + ... + 95897.

Almost surely, 252020272 is an apocalyptic number.

It is an amenable number.

52020272 is an abundant number, since it is smaller than the sum of its proper divisors (54698344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52020272 is a wasteful number, since it uses less digits than its factorization.

52020272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191276 (or 191270 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 52020272 is about 7212.5080242590. The cubic root of 52020272 is about 373.2996128841.

Adding to 52020272 its reverse (27202025), we get a palindrome (79222297).

The spelling of 52020272 in words is "fifty-two million, twenty thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 17 34 68 136 272 191251 382502 765004 1530008 3060016 3251267 6502534 13005068 26010136 52020272