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654044640341 = 4190469176329
BaseRepresentation
bin10011000010010000001…
…10010011010001010101
32022112012111101020121012
421201020012103101111
541203440411442331
61220244114302005
765152556500061
oct11411006232125
92275174336535
10654044640341
1123241916a814
12a6912287905
13498a364b631
1423927c28aa1
151202e85482b
hex9848193455

654044640341 has 8 divisors (see below), whose sum is σ = 670008154200. Its totient is φ = 638081660160.

The previous prime is 654044640307. The next prime is 654044640343. The reversal of 654044640341 is 143046440456.

It can be written as a sum of positive squares in 4 ways, for example, as 2044900 + 654042595441 = 1430^2 + 808729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 654044640341 - 214 = 654044623957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654044640343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3621065 + ... + 3797393.

It is an arithmetic number, because the mean of its divisors is an integer number (83751019275).

Almost surely, 2654044640341 is an apocalyptic number.

It is an amenable number.

654044640341 is a deficient number, since it is larger than the sum of its proper divisors (15963513859).

654044640341 is a wasteful number, since it uses less digits than its factorization.

654044640341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266839.

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 654044640341 in words is "six hundred fifty-four billion, forty-four million, six hundred forty thousand, three hundred forty-one".

Divisors: 1 41 90469 176329 3709229 7229489 15952308301 654044640341