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53263049 = 721087001
BaseRepresentation
bin1100101100101…
…1101011001001
310201020001011112
43023023223021
5102113404144
65141340105
71214504600
oct313135311
9121201145
1053263049
112807a354
1215a07635
13b05b6c8
147106a37
154a2199e
hex32cbac9

53263049 has 6 divisors (see below), whose sum is σ = 61959114. Its totient is φ = 45654000.

The previous prime is 53263037. The next prime is 53263081. The reversal of 53263049 is 94036235.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 9966649 = 6580^2 + 3157^2 .

It is not a de Polignac number, because 53263049 - 24 = 53263033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53263649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 543452 + ... + 543549.

It is an arithmetic number, because the mean of its divisors is an integer number (10326519).

Almost surely, 253263049 is an apocalyptic number.

It is an amenable number.

53263049 is a deficient number, since it is larger than the sum of its proper divisors (8696065).

53263049 is a wasteful number, since it uses less digits than its factorization.

53263049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087015 (or 1087008 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 53263049 is about 7298.1538076420. The cubic root of 53263049 is about 376.2489886398.

It can be divided in two parts, 5326304 and 9, that multiplied together give a triangular number (47936736 = T9791).

The spelling of 53263049 in words is "fifty-three million, two hundred sixty-three thousand, forty-nine".

Divisors: 1 7 49 1087001 7609007 53263049