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53044447 = 1941149457
BaseRepresentation
bin1100101001011…
…0010011011111
310200210221022011
43022112103133
5102034410242
65132532051
71212604351
oct312262337
9120727264
1053044447
1127a40095
1215921027
13acb3061
14708b0d1
1549cbd17
hex32964df

53044447 has 16 divisors (see below), whose sum is σ = 57708000. Its totient is φ = 48591360.

The previous prime is 53044367. The next prime is 53044457. The reversal of 53044447 is 74444035.

It is not a de Polignac number, because 53044447 - 211 = 53042399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53044457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115843 + ... + 116299.

It is an arithmetic number, because the mean of its divisors is an integer number (3606750).

Almost surely, 253044447 is an apocalyptic number.

53044447 is a deficient number, since it is larger than the sum of its proper divisors (4663553).

53044447 is a wasteful number, since it uses less digits than its factorization.

53044447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 53044447 is about 7283.1618820400. The cubic root of 53044447 is about 375.7335496257.

The spelling of 53044447 in words is "fifty-three million, forty-four thousand, four hundred forty-seven".

Divisors: 1 19 41 149 457 779 2831 6109 8683 18737 68093 116071 356003 1293767 2791813 53044447