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6128542380 = 2235831230631
BaseRepresentation
bin1011011010100101…
…00010001010101100
3120211002221012200010
411231102202022230
5100022401324010
62452043533220
7304604515332
oct55522421254
916732835603
106128542380
112665447664
12123052a210
137688c3c4c
14421d0db52
1525d079620
hex16d4a22ac

6128542380 has 48 divisors (see below), whose sum is σ = 17366678784. Its totient is φ = 1614586560.

The previous prime is 6128542369. The next prime is 6128542493. The reversal of 6128542380 is 832458216.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610336 + ... + 620295.

It is an arithmetic number, because the mean of its divisors is an integer number (361805808).

Almost surely, 26128542380 is an apocalyptic number.

6128542380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6128542380 is an abundant number, since it is smaller than the sum of its proper divisors (11238136404).

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

6128542380 is a wasteful number, since it uses less digits than its factorization.

6128542380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230726 (or 1230724 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 6128542380 is about 78285.0073768918. The cubic root of 6128542380 is about 1830.0055122412.

The spelling of 6128542380 in words is "six billion, one hundred twenty-eight million, five hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 4980 1230631 2461262 3691893 4922524 6153155 7383786 12306310 14767572 18459465 24612620 36918930 73837860 102142373 204284746 306427119 408569492 510711865 612854238 1021423730 1225708476 1532135595 2042847460 3064271190 6128542380