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12793949923 = 291039142457
BaseRepresentation
bin10111110101001010…
…00010111011100011
31020000122001222220011
423322211002323203
5202200222344143
65513310425351
7632021531356
oct137245027343
936018058804
1012793949923
11547593aa37
122590802257
13128b7a9991
1489525029d
154ed2eee9d
hex2fa942ee3

12793949923 has 8 divisors (see below), whose sum is σ = 13236706080. Its totient is φ = 12351299520.

The previous prime is 12793949887. The next prime is 12793949941. The reversal of 12793949923 is 32994939721.

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

It is not a de Polignac number, because 12793949923 - 233 = 4204015331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12793949963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280111 + ... + 322567.

It is an arithmetic number, because the mean of its divisors is an integer number (1654588260).

Almost surely, 212793949923 is an apocalyptic number.

12793949923 is a deficient number, since it is larger than the sum of its proper divisors (442756157).

12793949923 is a wasteful number, since it uses less digits than its factorization.

12793949923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52877.

The product of its digits is 6613488, while the sum is 58.

The spelling of 12793949923 in words is "twelve billion, seven hundred ninety-three million, nine hundred forty-nine thousand, nine hundred twenty-three".

Divisors: 1 29 10391 42457 301339 1231253 441170687 12793949923