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128168150 = 25211467499
BaseRepresentation
bin1111010001110…
…11000011010110
322221011121122112
413220323003112
5230302340100
620415031022
73114261035
oct750730326
9287147575
10128168150
11663906a0
1236b0b472
1320726a56
141304471c
15b3bab35
hex7a3b0d6

128168150 has 48 divisors (see below), whose sum is σ = 261144000. Its totient is φ = 46413600.

The previous prime is 128168149. The next prime is 128168191. The reversal of 128168150 is 51861821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256601 + ... + 257099.

It is an arithmetic number, because the mean of its divisors is an integer number (5440500).

Almost surely, 2128168150 is an apocalyptic number.

128168150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128168150 is an abundant number, since it is smaller than the sum of its proper divisors (132975850).

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

128168150 is a wasteful number, since it uses less digits than its factorization.

128168150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 128168150 is about 11321.1373103589. The cubic root of 128168150 is about 504.1890064398.

The spelling of 128168150 in words is "one hundred twenty-eight million, one hundred sixty-eight thousand, one hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 467 499 550 934 998 2335 2495 4670 4990 5137 5489 10274 10978 11675 12475 23350 24950 25685 27445 51370 54890 128425 137225 233033 256850 274450 466066 1165165 2330330 2563363 5126726 5825825 11651650 12816815 25633630 64084075 128168150