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11111212196 = 2276710215801
BaseRepresentation
bin10100101100100011…
…11010010010100100
31001200100201001200122
422112101322102210
5140223432242241
65034315501112
7542226513440
oct122621722244
931610631618
1011111212196
114791a981a7
1221a1157798
131080c95696
1477597d820
1545070b04b
hex29647a4a4

11111212196 has 48 divisors (see below), whose sum is σ = 22580084352. Its totient is φ = 4685472000.

The previous prime is 11111212153. The next prime is 11111212199. The reversal of 11111212196 is 69121211111.

It is not an unprimeable number, because it can be changed into a prime (11111212199) 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, 1912496 + ... + 1918296.

It is an arithmetic number, because the mean of its divisors is an integer number (470418424).

Almost surely, 211111212196 is an apocalyptic number.

It is an amenable number.

11111212196 is an abundant number, since it is smaller than the sum of its proper divisors (11468872156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111212196 is a wasteful number, since it uses less digits than its factorization.

11111212196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900 (or 6898 counting only the distinct ones).

The product of its digits is 216, while the sum is 26.

The spelling of 11111212196 in words is "eleven billion, one hundred eleven million, two hundred twelve thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 67 134 268 469 938 1021 1876 2042 4084 5801 7147 11602 14294 23204 28588 40607 68407 81214 136814 162428 273628 388667 478849 777334 957698 1554668 1915396 2720669 5441338 5922821 10882676 11845642 23691284 41459747 82919494 165838988 396829007 793658014 1587316028 2777803049 5555606098 11111212196