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54194154305 = 510838830861
BaseRepresentation
bin110010011110001110…
…010010101101000001
312011212212212021201012
4302132032102231001
51341442200414210
640521344450305
73625660465604
oct623616225501
9164785767635
1054194154305
1120a90207285
12a605619995
13515897ca35
1428a178433b
151622bbc305
hexc9e392b41

54194154305 has 4 divisors (see below), whose sum is σ = 65032985172. Its totient is φ = 43355323440.

The previous prime is 54194154269. The next prime is 54194154331. The reversal of 54194154305 is 50345149145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50345149145 = 510069029829.

It can be written as a sum of positive squares in 2 ways, for example, as 7519144369 + 46675009936 = 86713^2 + 216044^2 .

It is not a de Polignac number, because 54194154305 - 212 = 54194150209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5419415426 + ... + 5419415435.

It is an arithmetic number, because the mean of its divisors is an integer number (16258246293).

Almost surely, 254194154305 is an apocalyptic number.

It is an amenable number.

54194154305 is a deficient number, since it is larger than the sum of its proper divisors (10838830867).

54194154305 is a wasteful number, since it uses less digits than its factorization.

54194154305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10838830866.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 54194154305 in words is "fifty-four billion, one hundred ninety-four million, one hundred fifty-four thousand, three hundred five".

Divisors: 1 5 10838830861 54194154305