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394797902113574 = 21979131511626287
BaseRepresentation
bin101100111000100010000110…
…0101101101010101100100110
31220202212022101121022122001222
41121301010030231222230212
5403221332100420113244
63515355352531220342
7146105131024321211
oct13161041455525446
91822768347278058
10394797902113574
11104881939423903
123834258a7476b2
1313c3a38963980b
146d6c46b324778
1530998ed1dbbee
hex167110cb6ab26

394797902113574 has 16 divisors (see below), whose sum is σ = 631255806182400. Its totient is φ = 184642323305544.

The previous prime is 394797902113567. The next prime is 394797902113579. The reversal of 394797902113574 is 475311209797493.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 394797902113498 and 394797902113507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394797902113579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65755810142 + ... + 65755816145.

It is an arithmetic number, because the mean of its divisors is an integer number (39453487886400).

Almost surely, 2394797902113574 is an apocalyptic number.

394797902113574 is a deficient number, since it is larger than the sum of its proper divisors (236457904068826).

394797902113574 is a wasteful number, since it uses less digits than its factorization.

394797902113574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131511626387.

The product of its (nonzero) digits is 360067680, while the sum is 71.

The spelling of 394797902113574 in words is "three hundred ninety-four trillion, seven hundred ninety-seven billion, nine hundred two million, one hundred thirteen thousand, five hundred seventy-four".

Divisors: 1 2 19 38 79 158 1501 3002 131511626287 263023252574 2498720899453 4997441798906 10389418476673 20778836953346 197398951056787 394797902113574