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12740089 = 171939443
BaseRepresentation
bin110000100110…
…010111111001
3212222021010011
4300212113321
511230140324
61133021521
7213201055
oct60462771
925867104
1012740089
1172118aa
1243248a1
132840b1b
141998c65
1511b9c94
hexc265f9

12740089 has 8 divisors (see below), whose sum is σ = 14199840. Its totient is φ = 11359296.

The previous prime is 12740081. The next prime is 12740107. The reversal of 12740089 is 98004721.

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 12740089 - 23 = 12740081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12740089.

It is not an unprimeable number, because it can be changed into a prime (12740081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19399 + ... + 20044.

It is an arithmetic number, because the mean of its divisors is an integer number (1774980).

Almost surely, 212740089 is an apocalyptic number.

12740089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12740089 is a deficient number, since it is larger than the sum of its proper divisors (1459751).

12740089 is a wasteful number, since it uses less digits than its factorization.

12740089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39479.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12740089 is about 3569.3261268761. The cubic root of 12740089 is about 233.5558881119. Note that the first 3 decimals are identical.

The spelling of 12740089 in words is "twelve million, seven hundred forty thousand, eighty-nine".

Divisors: 1 17 19 323 39443 670531 749417 12740089