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128834008 = 23295091091
BaseRepresentation
bin1111010110111…
…01100111011000
322222102110000221
413223131213120
5230440142013
620441205424
73123033232
oct753354730
9288373027
10128834008
11667a5996
1237190874
13208cab54
1413179252
15b49d08d
hex7add9d8

128834008 has 32 divisors (see below), whose sum is σ = 250614000. Its totient is φ = 62016640.

The previous prime is 128833961. The next prime is 128834009. The reversal of 128834008 is 800438821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128834009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117543 + ... + 118633.

Almost surely, 2128834008 is an apocalyptic number.

It is an amenable number.

128834008 is a deficient number, since it is larger than the sum of its proper divisors (121779992).

128834008 is a wasteful number, since it uses less digits than its factorization.

128834008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1631 counting only the distinct ones).

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

The square root of 128834008 is about 11350.5069490310. The cubic root of 128834008 is about 505.0606181522.

The spelling of 128834008 in words is "one hundred twenty-eight million, eight hundred thirty-four thousand, eight".

Divisors: 1 2 4 8 29 58 116 232 509 1018 1091 2036 2182 4072 4364 8728 14761 29522 31639 59044 63278 118088 126556 253112 555319 1110638 2221276 4442552 16104251 32208502 64417004 128834008