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52989545 = 5743137257
BaseRepresentation
bin1100101000100…
…0111001101001
310200201010222202
43022020321221
5102031131140
65131425545
71212255320
oct312107151
9120633882
1052989545
1127a02914
12158b52b5
13ac9407b
1470750b7
1549ba915
hex3288e69

52989545 has 32 divisors (see below), whose sum is σ = 75195648. Its totient is φ = 35094528.

The previous prime is 52989533. The next prime is 52989551. The reversal of 52989545 is 54598925.

It is not a de Polignac number, because 52989545 - 24 = 52989529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52989545.

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, 206057 + ... + 206313.

It is an arithmetic number, because the mean of its divisors is an integer number (2349864).

Almost surely, 252989545 is an apocalyptic number.

It is an amenable number.

52989545 is a deficient number, since it is larger than the sum of its proper divisors (22206103).

52989545 is a wasteful number, since it uses less digits than its factorization.

52989545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its digits is 648000, while the sum is 47.

The square root of 52989545 is about 7279.3918015175. The cubic root of 52989545 is about 375.6038744472.

The spelling of 52989545 in words is "fifty-two million, nine hundred eighty-nine thousand, five hundred forty-five".

Divisors: 1 5 7 35 43 137 215 257 301 685 959 1285 1505 1799 4795 5891 8995 11051 29455 35209 41237 55255 77357 176045 206185 246463 386785 1232315 1513987 7569935 10597909 52989545