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228100601 is a prime number
BaseRepresentation
bin11011001100010…
…00100111111001
3120220012201012102
431212020213321
5431343204401
634344553145
75436552221
oct1546104771
9526181172
10228100601
111078363a3
12644827b5
1338345891
1422419081
151505a56b
hexd9889f9

228100601 has 2 divisors, whose sum is σ = 228100602. Its totient is φ = 228100600.

The previous prime is 228100501. The next prime is 228100627. The reversal of 228100601 is 106001822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228010000 + 90601 = 15100^2 + 301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228100601 is a prime.

It is a super-2 number, since 2×2281006012 = 104059768353122402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (228100651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114050300 + 114050301.

It is an arithmetic number, because the mean of its divisors is an integer number (114050301).

Almost surely, 2228100601 is an apocalyptic number.

It is an amenable number.

228100601 is a deficient number, since it is larger than the sum of its proper divisors (1).

228100601 is an equidigital number, since it uses as much as digits as its factorization.

228100601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 228100601 is about 15102.9997351520. Note that the first 3 decimals coincide. The cubic root of 228100601 is about 611.0013125405.

The spelling of 228100601 in words is "two hundred twenty-eight million, one hundred thousand, six hundred one".