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53075445 = 3517208139
BaseRepresentation
bin1100101001110…
…1110111110101
310200212111211020
43022131313311
5102041403240
65133331353
71213063623
oct312356765
9120774736
1053075445
1127a61405
1215936b59
13acc41b7
147098513
1549d60d0
hex329ddf5

53075445 has 16 divisors (see below), whose sum is σ = 89916480. Its totient is φ = 26641664.

The previous prime is 53075437. The next prime is 53075461. The reversal of 53075445 is 54457035.

It is a cyclic number.

It is not a de Polignac number, because 53075445 - 23 = 53075437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103815 + ... + 104324.

It is an arithmetic number, because the mean of its divisors is an integer number (5619780).

Almost surely, 253075445 is an apocalyptic number.

It is an amenable number.

53075445 is a deficient number, since it is larger than the sum of its proper divisors (36841035).

53075445 is a wasteful number, since it uses less digits than its factorization.

53075445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208164.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 53075445 is about 7285.2896304814. The cubic root of 53075445 is about 375.8067254950.

The spelling of 53075445 in words is "fifty-three million, seventy-five thousand, four hundred forty-five".

Divisors: 1 3 5 15 17 51 85 255 208139 624417 1040695 3122085 3538363 10615089 17691815 53075445