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128325788 = 2232081447
BaseRepresentation
bin1111010011000…
…01100010011100
322221110121212222
413221201202130
5230322411123
620422244512
73115515443
oct751414234
9287417788
10128325788
1166489078
1236b86738
1320780726
1413085d5a
15b3ec6c8
hex7a6189c

128325788 has 6 divisors (see below), whose sum is σ = 224570136. Its totient is φ = 64162892.

The previous prime is 128325787. The next prime is 128325797. The reversal of 128325788 is 887523821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128325787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16040720 + ... + 16040727.

It is an arithmetic number, because the mean of its divisors is an integer number (37428356).

Almost surely, 2128325788 is an apocalyptic number.

It is an amenable number.

128325788 is a deficient number, since it is larger than the sum of its proper divisors (96244348).

128325788 is a wasteful number, since it uses less digits than its factorization.

128325788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32081451 (or 32081449 counting only the distinct ones).

The product of its digits is 215040, while the sum is 44.

The square root of 128325788 is about 11328.0972806557. The cubic root of 128325788 is about 504.3956276743.

The spelling of 128325788 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, seven hundred eighty-eight".

Divisors: 1 2 4 32081447 64162894 128325788