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128136302 = 2743212851
BaseRepresentation
bin1111010001100…
…11010001101110
322221002222221222
413220303101232
5230300330202
620414223342
73114066140
oct750632156
9287088858
10128136302
1166369778
1236ab4b52
13207153c8
1413036c90
15b3b14a2
hex7a3346e

128136302 has 16 divisors (see below), whose sum is σ = 224771712. Its totient is φ = 53638200.

The previous prime is 128136301. The next prime is 128136311. The reversal of 128136302 is 203631821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128136301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105824 + ... + 107027.

It is an arithmetic number, because the mean of its divisors is an integer number (14048232).

Almost surely, 2128136302 is an apocalyptic number.

128136302 is a deficient number, since it is larger than the sum of its proper divisors (96635410).

128136302 is a wasteful number, since it uses less digits than its factorization.

128136302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212903.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 128136302 is about 11319.7306505058. The cubic root of 128136302 is about 504.1472416652.

The spelling of 128136302 in words is "one hundred twenty-eight million, one hundred thirty-six thousand, three hundred two".

Divisors: 1 2 7 14 43 86 301 602 212851 425702 1489957 2979914 9152593 18305186 64068151 128136302