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6121928293 = 131753522661
BaseRepresentation
bin1011011001110010…
…10011011001100101
3120210122111011211221
411230321103121211
5100014203201133
62451250100341
7304464350305
oct55471233145
916718434757
106121928293
11266173a378
12122a27a6b1
137674195a0
144210ab605
1525c6bea2d
hex16ce53665

6121928293 has 16 divisors (see below), whose sum is σ = 7112384496. Its totient is φ = 5218237440.

The previous prime is 6121928273. The next prime is 6121928297. The reversal of 6121928293 is 3928291216.

It can be written as a sum of positive squares in 8 ways, for example, as 3090564 + 6118837729 = 1758^2 + 78223^2 .

It is not a de Polignac number, because 6121928293 - 25 = 6121928261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121928297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249618 + ... + 273043.

It is an arithmetic number, because the mean of its divisors is an integer number (444524031).

Almost surely, 26121928293 is an apocalyptic number.

It is an amenable number.

6121928293 is a deficient number, since it is larger than the sum of its proper divisors (990456203).

6121928293 is a wasteful number, since it uses less digits than its factorization.

6121928293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522744.

The product of its digits is 93312, while the sum is 43.

The square root of 6121928293 is about 78242.7523352802. The cubic root of 6121928293 is about 1829.3469449569.

The spelling of 6121928293 in words is "six billion, one hundred twenty-one million, nine hundred twenty-eight thousand, two hundred ninety-three".

Divisors: 1 13 17 53 221 689 901 11713 522661 6794593 8885237 27701033 115508081 360113429 470917561 6121928293