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52819145 = 519613907
BaseRepresentation
bin1100100101111…
…1010011001001
310200101111020122
43021133103021
5102010203040
65124033025
71210645451
oct311372311
9120344218
1052819145
11278a6895
1215832775
13ac34642
14702cd61
1549851b5
hex325f4c9

52819145 has 16 divisors (see below), whose sum is σ = 66901440. Its totient is φ = 39921984.

The previous prime is 52819099. The next prime is 52819171. The reversal of 52819145 is 54191825.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52819145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57782 + ... + 58688.

It is an arithmetic number, because the mean of its divisors is an integer number (4181340).

Almost surely, 252819145 is an apocalyptic number.

It is an amenable number.

52819145 is a deficient number, since it is larger than the sum of its proper divisors (14082295).

52819145 is a wasteful number, since it uses less digits than its factorization.

52819145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its digits is 14400, while the sum is 35.

The square root of 52819145 is about 7267.6781023928. The cubic root of 52819145 is about 375.2008287246.

The spelling of 52819145 in words is "fifty-two million, eight hundred nineteen thousand, one hundred forty-five".

Divisors: 1 5 19 95 613 907 3065 4535 11647 17233 58235 86165 555991 2779955 10563829 52819145