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128200141 = 334738303
BaseRepresentation
bin1111010010000…
…10110111001101
322221020020112101
413221002313031
5230304401031
620415435101
73114453226
oct751026715
9287206471
10128200141
1166402733
1236b25a91
1320738494
141305224d
15b3c5361
hex7a42dcd

128200141 has 4 divisors (see below), whose sum is σ = 128241792. Its totient is φ = 128158492.

The previous prime is 128200133. The next prime is 128200151. The reversal of 128200141 is 141002821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128200141 - 23 = 128200133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128200151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15805 + ... + 22498.

It is an arithmetic number, because the mean of its divisors is an integer number (32060448).

Almost surely, 2128200141 is an apocalyptic number.

It is an amenable number.

128200141 is a deficient number, since it is larger than the sum of its proper divisors (41651).

128200141 is an equidigital number, since it uses as much as digits as its factorization.

128200141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41650.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 128200141 is about 11322.5501102888. The cubic root of 128200141 is about 504.2309517767.

Adding to 128200141 its reverse (141002821), we get a palindrome (269202962).

The spelling of 128200141 in words is "one hundred twenty-eight million, two hundred thousand, one hundred forty-one".

Divisors: 1 3347 38303 128200141