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53190065 = 513218053
BaseRepresentation
bin1100101011100…
…1110110110001
310201002100001102
43022321312301
5102104040230
65140014145
71214052035
oct312716661
9121070042
1053190065
112802a535
1215991355
13b034416
1470c81c5
154a0a045
hex32b9db1

53190065 has 8 divisors (see below), whose sum is σ = 63884328. Its totient is φ = 42514560.

The previous prime is 53190037. The next prime is 53190073. The reversal of 53190065 is 56009135.

It can be written as a sum of positive squares in 4 ways, for example, as 23203489 + 29986576 = 4817^2 + 5476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53190065 - 28 = 53189809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (7985541).

Almost surely, 253190065 is an apocalyptic number.

It is an amenable number.

53190065 is a deficient number, since it is larger than the sum of its proper divisors (10694263).

53190065 is a wasteful number, since it uses less digits than its factorization.

53190065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9379.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 53190065 is about 7293.1519249224. The cubic root of 53190065 is about 376.0770576374.

The spelling of 53190065 in words is "fifty-three million, one hundred ninety thousand, sixty-five".

Divisors: 1 5 1321 6605 8053 40265 10638013 53190065