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53396071 = 99153881
BaseRepresentation
bin1100101110110…
…0001001100111
310201110210122021
43023230021213
5102132133241
65144244011
71215600451
oct313541147
9121423567
1053396071
1128160293
1215a70607
13b0a7111
14713d2d1
154a4b0d1
hex32ec267

53396071 has 4 divisors (see below), whose sum is σ = 53450944. Its totient is φ = 53341200.

The previous prime is 53396059. The next prime is 53396081. The reversal of 53396071 is 17069335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53396071 - 25 = 53396039 is a prime.

It is a super-2 number, since 2×533960712 = 5702280796474082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53396011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25950 + ... + 27931.

It is an arithmetic number, because the mean of its divisors is an integer number (13362736).

Almost surely, 253396071 is an apocalyptic number.

53396071 is a deficient number, since it is larger than the sum of its proper divisors (54873).

53396071 is an equidigital number, since it uses as much as digits as its factorization.

53396071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54872.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 53396071 is about 7307.2615253596. The cubic root of 53396071 is about 376.5619497280.

The spelling of 53396071 in words is "fifty-three million, three hundred ninety-six thousand, seventy-one".

Divisors: 1 991 53881 53396071