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57227545 = 553215953
BaseRepresentation
bin1101101001001…
…1100100011001
310222200110102201
43122103210121
5104122240140
65402330201
71263266104
oct332234431
9128613381
1057227545
112a3379a1
12171b9961
13bb1906b
14785973b
15505649a
hex3693919

57227545 has 8 divisors (see below), whose sum is σ = 69969096. Its totient is φ = 44918016.

The previous prime is 57227543. The next prime is 57227549. The reversal of 57227545 is 54572275.

57227545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3952144 + 53275401 = 1988^2 + 7299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57227545 - 21 = 57227543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57227543) 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 7 ways as a sum of consecutive naturals, for example, 107712 + ... + 108241.

It is an arithmetic number, because the mean of its divisors is an integer number (8746137).

Almost surely, 257227545 is an apocalyptic number.

It is an amenable number.

57227545 is a deficient number, since it is larger than the sum of its proper divisors (12741551).

57227545 is a wasteful number, since it uses less digits than its factorization.

57227545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216011.

The product of its digits is 98000, while the sum is 37.

The square root of 57227545 is about 7564.8889615116. Note that the first 3 decimals coincide. The cubic root of 57227545 is about 385.3615426528.

The spelling of 57227545 in words is "fifty-seven million, two hundred twenty-seven thousand, five hundred forty-five".

Divisors: 1 5 53 265 215953 1079765 11445509 57227545