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227580061 is a prime number
BaseRepresentation
bin11011001000010…
…01100010011101
3120212020021011011
431210021202131
5431230030221
634325455221
75432253502
oct1544114235
9525207134
10227580061
111075102a5
1264271511
13381c2977
14223214a9
1514ea61e1
hexd90989d

227580061 has 2 divisors, whose sum is σ = 227580062. Its totient is φ = 227580060.

The previous prime is 227580047. The next prime is 227580077. The reversal of 227580061 is 160085722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169911225 + 57668836 = 13035^2 + 7594^2 .

It is a cyclic number.

It is not a de Polignac number, because 227580061 - 25 = 227580029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227580091) 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 as a sum of consecutive naturals, namely, 113790030 + 113790031.

It is an arithmetic number, because the mean of its divisors is an integer number (113790031).

Almost surely, 2227580061 is an apocalyptic number.

It is an amenable number.

227580061 is a deficient number, since it is larger than the sum of its proper divisors (1).

227580061 is an equidigital number, since it uses as much as digits as its factorization.

227580061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 227580061 is about 15085.7568918500. The cubic root of 227580061 is about 610.5361773235.

The spelling of 227580061 in words is "two hundred twenty-seven million, five hundred eighty thousand, sixty-one".