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128250000330 = 23531349127817
BaseRepresentation
bin111011101110001001…
…0111011001111001010
3110021000222000001101020
41313130102323033022
54100124000002310
6134530042333310
712160104005334
oct1673422731712
9407028001336
10128250000330
114a432866511
1220a327ba236
13c12b47007a
1462c8cca454
1535093d5170
hex1ddc4bb3ca

128250000330 has 64 divisors (see below), whose sum is σ = 309423397248. Its totient is φ = 34020080640.

The previous prime is 128250000259. The next prime is 128250000353. The reversal of 128250000330 is 33000052821.

It is a self number, because there is not a number n which added to its sum of digits gives 128250000330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4596582 + ... + 4624398.

It is an arithmetic number, because the mean of its divisors is an integer number (4834740582).

Almost surely, 2128250000330 is an apocalyptic number.

128250000330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128250000330 is an abundant number, since it is smaller than the sum of its proper divisors (181173396918).

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

128250000330 is a wasteful number, since it uses less digits than its factorization.

128250000330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28631.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 128250000330 in words is "one hundred twenty-eight billion, two hundred fifty million, three hundred thirty", and thus it is an aban number.

Divisors: 1 2 3 5 6 10 15 30 313 491 626 939 982 1473 1565 1878 2455 2946 3130 4695 4910 7365 9390 14730 27817 55634 83451 139085 153683 166902 278170 307366 417255 461049 768415 834510 922098 1536830 2305245 4610490 8706721 13658147 17413442 26120163 27316294 40974441 43533605 52240326 68290735 81948882 87067210 130600815 136581470 204872205 261201630 409744410 4275000011 8550000022 12825000033 21375000055 25650000066 42750000110 64125000165 128250000330