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128383801 = 7131410811
BaseRepresentation
bin1111010011011…
…11101100111001
322221120120110121
413221233230321
5230331240201
620423413241
73116146540
oct751575471
9287516417
10128383801
1166518717
1236bb4221
13207a0c60
141309d157
15b40e9a1
hex7a6fb39

128383801 has 8 divisors (see below), whose sum is σ = 158010944. Its totient is φ = 101578320.

The previous prime is 128383771. The next prime is 128383831. The reversal of 128383801 is 108383821.

It is an interprime number because it is at equal distance from previous prime (128383771) and next prime (128383831).

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

It is a cyclic number.

It is not a de Polignac number, because 128383801 - 29 = 128383289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128383831) 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, 705315 + ... + 705496.

It is an arithmetic number, because the mean of its divisors is an integer number (19751368).

Almost surely, 2128383801 is an apocalyptic number.

It is an amenable number.

128383801 is a deficient number, since it is larger than the sum of its proper divisors (29627143).

128383801 is a wasteful number, since it uses less digits than its factorization.

128383801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410831.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 128383801 is about 11330.6575713857. The cubic root of 128383801 is about 504.4716245975.

The spelling of 128383801 in words is "one hundred twenty-eight million, three hundred eighty-three thousand, eight hundred one".

Divisors: 1 7 13 91 1410811 9875677 18340543 128383801