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128083084 = 2247681293
BaseRepresentation
bin1111010001001…
…10010010001100
322221000021221221
413220212102030
5230242124314
620413133124
73113455033
oct750462214
9287007857
10128083084
1166332798
1236a8a1a4
13206c710c
141302171a
15b3a0824
hex7a2648c

128083084 has 12 divisors (see below), whose sum is σ = 228914784. Its totient is φ = 62678864.

The previous prime is 128083073. The next prime is 128083091. The reversal of 128083084 is 480380821.

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, 340459 + ... + 340834.

It is an arithmetic number, because the mean of its divisors is an integer number (19076232).

Almost surely, 2128083084 is an apocalyptic number.

It is an amenable number.

128083084 is a deficient number, since it is larger than the sum of its proper divisors (100831700).

128083084 is a wasteful number, since it uses less digits than its factorization.

128083084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681344 (or 681342 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 128083084 is about 11317.3797320758. The cubic root of 128083084 is about 504.0774372911.

The spelling of 128083084 in words is "one hundred twenty-eight million, eighty-three thousand, eighty-four".

Divisors: 1 2 4 47 94 188 681293 1362586 2725172 32020771 64041542 128083084