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52481805 = 3517277743
BaseRepresentation
bin1100100000110…
…0111100001101
310122202100111120
43020030330031
5101413404210
65112511153
71205042115
oct310147415
9118670446
1052481805
11276963a2
12156ab4b9
13ab46c2c
146d82045
15491a270
hex320cf0d

52481805 has 32 divisors (see below), whose sum is σ = 89351424. Its totient is φ = 26213376.

The previous prime is 52481797. The next prime is 52481831. The reversal of 52481805 is 50818425.

It is not a de Polignac number, because 52481805 - 23 = 52481797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70264 + ... + 71006.

It is an arithmetic number, because the mean of its divisors is an integer number (2792232).

Almost surely, 252481805 is an apocalyptic number.

It is an amenable number.

52481805 is a deficient number, since it is larger than the sum of its proper divisors (36869619).

52481805 is a wasteful number, since it uses less digits than its factorization.

52481805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 52481805 is about 7244.4326900041. The cubic root of 52481805 is about 374.4003572094.

The spelling of 52481805 in words is "fifty-two million, four hundred eighty-one thousand, eight hundred five".

Divisors: 1 3 5 15 17 51 85 255 277 743 831 1385 2229 3715 4155 4709 11145 12631 14127 23545 37893 63155 70635 189465 205811 617433 1029055 3087165 3498787 10496361 17493935 52481805