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19344827970 = 2335135511347
BaseRepresentation
bin10010000001000010…
…101010011001000010
31211221011201002012000
4102001002222121002
5304104233443340
612515322444430
71253245216236
oct220102523102
954834632160
1019344827970
118227718636
1238ba663716
131a93a32790
14d1729a5c6
157834a0d30
hex4810aa642

19344827970 has 64 divisors (see below), whose sum is σ = 55554387840. Its totient is φ = 4761802944.

The previous prime is 19344827963. The next prime is 19344827981. The reversal of 19344827970 is 7972844391.

19344827970 is a `hidden beast` number, since 1 + 93 + 4 + 482 + 7 + 9 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2752164 + ... + 2759183.

It is an arithmetic number, because the mean of its divisors is an integer number (868037310).

Almost surely, 219344827970 is an apocalyptic number.

19344827970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19344827970 is an abundant number, since it is smaller than the sum of its proper divisors (36209559870).

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

19344827970 is a wasteful number, since it uses less digits than its factorization.

19344827970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511376 (or 5511370 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 19344827970 in words is "nineteen billion, three hundred forty-four million, eight hundred twenty-seven thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 5511347 11022694 16534041 27556735 33068082 49602123 55113470 71647511 82670205 99204246 143295022 148806369 165340410 214942533 248010615 297612738 358237555 429885066 496021230 644827599 716475110 744031845 1074712665 1289655198 1488063690 1934482797 2149425330 3224137995 3868965594 6448275990 9672413985 19344827970