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128134092 = 22313976819
BaseRepresentation
bin1111010001100…
…10101111001100
322221002212221010
413220302233030
5230300242332
620414205220
73114056532
oct750625714
9287085833
10128134092
1166368049
1236ab3810
13207143b8
1413036152
15b3b09cc
hex7a32bcc

128134092 has 24 divisors (see below), whose sum is σ = 301134400. Its totient is φ = 42403536.

The previous prime is 128134091. The next prime is 128134121. The reversal of 128134092 is 290431821.

It is not an unprimeable number, because it can be changed into a prime (128134091) 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, 36742 + ... + 40077.

Almost surely, 2128134092 is an apocalyptic number.

128134092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128134092 is an abundant number, since it is smaller than the sum of its proper divisors (173000308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128134092 is a wasteful number, since it uses less digits than its factorization.

128134092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76965 (or 76963 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 128134092 is about 11319.6330329212. The cubic root of 128134092 is about 504.1443432625.

The spelling of 128134092 in words is "one hundred twenty-eight million, one hundred thirty-four thousand, ninety-two".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 76819 153638 230457 307276 460914 921828 10677841 21355682 32033523 42711364 64067046 128134092