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55071241 = 4121812
BaseRepresentation
bin1101001000010…
…1001000001001
310211121220112121
43102011020021
5103044234431
65244211241
71236045361
oct322051011
9124556477
1055071241
11290a4925
1216539b21
13b542744
1474579a1
154c7c611
hex3485209

55071241 has 9 divisors (see below), whose sum is σ = 56760789. Its totient is φ = 53431200.

The previous prime is 55071239. The next prime is 55071251. The reversal of 55071241 is 14217055.

The square root of 55071241 is 7421.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 49406841 + 5664400 = 7029^2 + 2380^2 .

It is not a de Polignac number, because 55071241 - 21 = 55071239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55071251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 304171 + ... + 304351.

Almost surely, 255071241 is an apocalyptic number.

55071241 is the 7421-st square number.

55071241 is the 3711-st centered octagonal number.

It is an amenable number.

55071241 is a deficient number, since it is larger than the sum of its proper divisors (1689548).

55071241 is an frugal number, since it uses more digits than its factorization.

55071241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The cubic root of 55071241 is about 380.4593728909.

Multiplying 55071241 by its sum of digits (25), we get a square (1376781025 = 371052).

Adding to 55071241 its reverse (14217055), we get a palindrome (69288296).

The spelling of 55071241 in words is "fifty-five million, seventy-one thousand, two hundred forty-one".

Divisors: 1 41 181 1681 7421 32761 304261 1343201 55071241