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53381001 = 317793667
BaseRepresentation
bin1100101110100…
…0011110001001
310201110000222010
43023220132021
5102131143001
65144050133
71215505512
oct313503611
9121400863
1053381001
112814aa33
1215a63949
13b0a02bb
147137a09
154a468d6
hex32e8789

53381001 has 4 divisors (see below), whose sum is σ = 71174672. Its totient is φ = 35587332.

The previous prime is 53380997. The next prime is 53381023. The reversal of 53381001 is 10018335.

It is a happy number.

53381001 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 53381001 - 22 = 53380997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53381701) 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, 8896831 + ... + 8896836.

It is an arithmetic number, because the mean of its divisors is an integer number (17793668).

Almost surely, 253381001 is an apocalyptic number.

It is an amenable number.

53381001 is a deficient number, since it is larger than the sum of its proper divisors (17793671).

53381001 is a wasteful number, since it uses less digits than its factorization.

53381001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17793670.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 53381001 is about 7306.2302865431. The cubic root of 53381001 is about 376.5265206385.

Adding to 53381001 its reverse (10018335), we get a palindrome (63399336).

The spelling of 53381001 in words is "fifty-three million, three hundred eighty-one thousand, one".

Divisors: 1 3 17793667 53381001