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12215578093 = 231134700107
BaseRepresentation
bin10110110000001101…
…01110110111101101
31011112022202122220021
423120012232313231
5200004141444333
65340050122141
7611466462205
oct133006566755
934468678807
1012215578093
1151a9414694
12244ab80351
1311c8a14624
1483c4d7405
154b765582d
hex2d81aeded

12215578093 has 8 divisors (see below), whose sum is σ = 12859495488. Its totient is φ = 11581061184.

The previous prime is 12215578069. The next prime is 12215578103. The reversal of 12215578093 is 39087551221.

It is a happy number.

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 12215578093 - 29 = 12215577581 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 (12215578493) 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, 2347455 + ... + 2352652.

It is an arithmetic number, because the mean of its divisors is an integer number (1607436936).

Almost surely, 212215578093 is an apocalyptic number.

It is an amenable number.

12215578093 is a deficient number, since it is larger than the sum of its proper divisors (643917395).

12215578093 is a wasteful number, since it uses less digits than its factorization.

12215578093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700243.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 12215578093 in words is "twelve billion, two hundred fifteen million, five hundred seventy-eight thousand, ninety-three".

Divisors: 1 23 113 2599 4700107 108102461 531112091 12215578093