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52045245 = 3257179719
BaseRepresentation
bin1100011010001…
…0010110111101
310121221011122200
43012202112331
5101310421440
65055302113
71201243260
oct306422675
9117834580
1052045245
11274183aa
121551a939
13aa23305
146caacd7
154880c30
hex31a25bd

52045245 has 48 divisors (see below), whose sum is σ = 109175040. Its totient is φ = 22390272.

The previous prime is 52045241. The next prime is 52045271. The reversal of 52045245 is 54254025.

It is not a de Polignac number, because 52045245 - 22 = 52045241 is a prime.

It is a super-2 number, since 2×520452452 = 5417415054220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52045241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496 + ... + 10214.

It is an arithmetic number, because the mean of its divisors is an integer number (2274480).

Almost surely, 252045245 is an apocalyptic number.

It is an amenable number.

52045245 is an abundant number, since it is smaller than the sum of its proper divisors (57129795).

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

52045245 is a wasteful number, since it uses less digits than its factorization.

52045245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754 (or 9751 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 52045245 is about 7214.2390451107. The cubic root of 52045245 is about 373.3593390863.

The spelling of 52045245 in words is "fifty-two million, forty-five thousand, two hundred forty-five".

Divisors: 1 3 5 7 9 15 17 21 35 45 51 63 85 105 119 153 255 315 357 595 765 1071 1785 5355 9719 29157 48595 68033 87471 145785 165223 204099 340165 437355 495669 612297 826115 1020495 1156561 1487007 2478345 3061485 3469683 5782805 7435035 10409049 17348415 52045245