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128148313 is a prime number
BaseRepresentation
bin1111010001101…
…10001101011001
322221010121102211
413220312031121
5230301221223
620414355121
73114146146
oct750661531
9287117384
10128148313
11663777a7
1236abbaa1
132071aa07
141303b3cd
15b3b4d0d
hex7a36359

128148313 has 2 divisors, whose sum is σ = 128148314. Its totient is φ = 128148312.

The previous prime is 128148283. The next prime is 128148337. The reversal of 128148313 is 313841821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86713344 + 41434969 = 9312^2 + 6437^2 .

It is a cyclic number.

It is not a de Polignac number, because 128148313 - 213 = 128140121 is a prime.

It is not a weakly prime, because it can be changed into another prime (128148613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64074156 + 64074157.

It is an arithmetic number, because the mean of its divisors is an integer number (64074157).

Almost surely, 2128148313 is an apocalyptic number.

It is an amenable number.

128148313 is a deficient number, since it is larger than the sum of its proper divisors (1).

128148313 is an equidigital number, since it uses as much as digits as its factorization.

128148313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 128148313 is about 11320.2611718988. The cubic root of 128148313 is about 504.1629934421.

It can be divided in two parts, 1281 and 48313, that added together give a palindrome (49594).

The spelling of 128148313 in words is "one hundred twenty-eight million, one hundred forty-eight thousand, three hundred thirteen".