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19730271283130 = 257327027768881
BaseRepresentation
bin1000111110001110011111…
…10011111010011110111010
32120212012021112021222210002
410133013033303322132322
510041230043422030010
6105543543403353002
74104315341532062
oct437071763723672
976765245258702
1019730271283130
116317619854901
122267a37b22762
13b01730b020a5
144c2d435c03a2
1524336a03b1a5
hex11f1cfcfa7ba

19730271283130 has 16 divisors (see below), whose sum is σ = 36000988150824. Its totient is φ = 7783997437440.

The previous prime is 19730271283123. The next prime is 19730271283169. The reversal of 19730271283130 is 3138217203791.

It is a Cunningham number, because it is equal to 44418772+1.

It can be written as a sum of positive squares in 4 ways, for example, as 11199858731161 + 8530412551969 = 3346619^2 + 2920687^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13513883711 + ... + 13513885170.

Almost surely, 219730271283130 is an apocalyptic number.

19730271283130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19730271283130 is a deficient number, since it is larger than the sum of its proper divisors (16270716867694).

19730271283130 is a wasteful number, since it uses less digits than its factorization.

19730271283130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27027768961.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 19730271283130 in words is "nineteen trillion, seven hundred thirty billion, two hundred seventy-one million, two hundred eighty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 73 146 365 730 27027768881 54055537762 135138844405 270277688810 1973027128313 3946054256626 9865135641565 19730271283130