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272145241 = 733728017
BaseRepresentation
bin10000001110001…
…001101101011001
3200222002102002101
4100032021231121
51024132121431
643001003401
76513124234
oct2016115531
9628072071
10272145241
1112a689825
1277183561
13444c73b4
142820241b
1518d5a961
hex10389b59

272145241 has 4 divisors (see below), whose sum is σ = 275873332. Its totient is φ = 268417152.

The previous prime is 272145239. The next prime is 272145271. The reversal of 272145241 is 142541272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 151782400 + 120362841 = 12320^2 + 10971^2 .

It is a cyclic number.

It is not a de Polignac number, because 272145241 - 21 = 272145239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272145271) 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 3 ways as a sum of consecutive naturals, for example, 1863936 + ... + 1864081.

It is an arithmetic number, because the mean of its divisors is an integer number (68968333).

Almost surely, 2272145241 is an apocalyptic number.

It is an amenable number.

272145241 is a deficient number, since it is larger than the sum of its proper divisors (3728091).

272145241 is an equidigital number, since it uses as much as digits as its factorization.

272145241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728090.

The product of its digits is 4480, while the sum is 28.

The square root of 272145241 is about 16496.8251794095. The cubic root of 272145241 is about 648.0376643568.

The spelling of 272145241 in words is "two hundred seventy-two million, one hundred forty-five thousand, two hundred forty-one".

Divisors: 1 73 3728017 272145241