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53445801 = 317815267
BaseRepresentation
bin1100101111100…
…0010010101001
310201120022212010
43023320102221
5102140231201
65145310133
71216165443
oct313702251
9121508763
1053445801
1128194692
1215a95349
13b0c3946
147153493
154a5abd6
hex32f84a9

53445801 has 4 divisors (see below), whose sum is σ = 71261072. Its totient is φ = 35630532.

The previous prime is 53445793. The next prime is 53445827. The reversal of 53445801 is 10854435.

53445801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53445801 - 23 = 53445793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53445851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8907631 + ... + 8907636.

It is an arithmetic number, because the mean of its divisors is an integer number (17815268).

Almost surely, 253445801 is an apocalyptic number.

It is an amenable number.

53445801 is a deficient number, since it is larger than the sum of its proper divisors (17815271).

53445801 is a wasteful number, since it uses less digits than its factorization.

53445801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17815270.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 53445801 is about 7310.6635129788. The cubic root of 53445801 is about 376.6788160994.

The spelling of 53445801 in words is "fifty-three million, four hundred forty-five thousand, eight hundred one".

Divisors: 1 3 17815267 53445801