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12213544189 = 711158617457
BaseRepresentation
bin10110101111111101…
…11110010011111101
31011112011221022220111
423113332332103331
5200003131403224
65335534350021
7611443261360
oct132776762375
934464838814
1012213544189
1151a8255580
12244a35b311
1311c8481932
1483c1280d7
154b73a2d94
hex2d7fbe4fd

12213544189 has 8 divisors (see below), whose sum is σ = 15227275968. Its totient is φ = 9517047360.

The previous prime is 12213544183. The next prime is 12213544201. The reversal of 12213544189 is 98144531221.

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 12213544189 - 23 = 12213544181 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 (12213544181) 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, 79308652 + ... + 79308805.

It is an arithmetic number, because the mean of its divisors is an integer number (1903409496).

Almost surely, 212213544189 is an apocalyptic number.

It is an amenable number.

12213544189 is a deficient number, since it is larger than the sum of its proper divisors (3013731779).

12213544189 is a wasteful number, since it uses less digits than its factorization.

12213544189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158617475.

The product of its digits is 69120, while the sum is 40.

The spelling of 12213544189 in words is "twelve billion, two hundred thirteen million, five hundred forty-four thousand, one hundred eighty-nine".

Divisors: 1 7 11 77 158617457 1110322199 1744792027 12213544189