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505752471 = 337397563
BaseRepresentation
bin11110001001010…
…010101110010111
31022020122212222000
4132021102232113
52013433034341
6122104010343
715350553000
oct3611225627
91266585860
10505752471
1123a536354
121214609b3
1380a1a523
144b2521a7
152e6028b6
hex1e252b97

505752471 has 64 divisors (see below), whose sum is σ = 884352000. Its totient is φ = 285513984.

The previous prime is 505752463. The next prime is 505752487. The reversal of 505752471 is 174257505.

It is not a de Polignac number, because 505752471 - 23 = 505752463 is a prime.

It is a super-3 number, since 3×5057524713 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505752461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 898036 + ... + 898598.

It is an arithmetic number, because the mean of its divisors is an integer number (13818000).

Almost surely, 2505752471 is an apocalyptic number.

505752471 is a deficient number, since it is larger than the sum of its proper divisors (378599529).

505752471 is an equidigital number, since it uses as much as digits as its factorization.

505752471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 505752471 is about 22488.9410822297. The cubic root of 505752471 is about 796.7327531840.

The spelling of 505752471 in words is "five hundred five million, seven hundred fifty-two thousand, four hundred seventy-one".

Divisors: 1 3 7 9 21 27 49 63 97 147 189 291 343 441 563 679 873 1029 1323 1689 2037 2619 3087 3941 4753 5067 6111 9261 11823 14259 15201 18333 27587 33271 35469 42777 54611 82761 99813 106407 128331 163833 193109 248283 299439 382277 491499 579327 744849 898317 1146831 1474497 1737981 2675939 3440493 5213943 8027817 10321479 18731573 24083451 56194719 72250353 168584157 505752471