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128316106 = 289720877
BaseRepresentation
bin1111010010111…
…11001011001010
322221110010121101
413221133023022
5230322103411
620422132014
73115445302
oct751371312
9287403541
10128316106
1166481876
1236b8100a
13207791b9
1413082602
15b3e98c1
hex7a5f2ca

128316106 has 8 divisors (see below), whose sum is σ = 194637060. Its totient is φ = 63437088.

The previous prime is 128316079. The next prime is 128316131. The reversal of 128316106 is 601613821.

It can be written as a sum of positive squares in 2 ways, for example, as 123409881 + 4906225 = 11109^2 + 2215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360261 + ... + 360616.

Almost surely, 2128316106 is an apocalyptic number.

128316106 is a deficient number, since it is larger than the sum of its proper divisors (66320954).

128316106 is an equidigital number, since it uses as much as digits as its factorization.

128316106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720968.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 128316106 is about 11327.6699281008. The cubic root of 128316106 is about 504.3829420420.

Adding to 128316106 its reverse (601613821), we get a palindrome (729929927).

The spelling of 128316106 in words is "one hundred twenty-eight million, three hundred sixteen thousand, one hundred six".

Divisors: 1 2 89 178 720877 1441754 64158053 128316106