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11919275312 = 247312374173
BaseRepresentation
bin10110001100111000…
…11011010100110000
31010202200012220220012
423012130123110300
5143402313302222
65250423234052
7601241111540
oct130634332460
933680186805
1011919275312
115067135a5a
1223878a8928
13117c50c639
14811007320
1549b6271e2
hex2c671b530

11919275312 has 240 divisors, whose sum is σ = 29084763456. Its totient is φ = 4628275200.

The previous prime is 11919275299. The next prime is 11919275351. The reversal of 11919275312 is 21357291911.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 11919275312.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163277708 + ... + 163277780.

Almost surely, 211919275312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11919275312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14542381728).

11919275312 is an abundant number, since it is smaller than the sum of its proper divisors (17165488144).

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

11919275312 is a wasteful number, since it uses less digits than its factorization.

11919275312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 191 counting only the distinct ones).

The product of its digits is 34020, while the sum is 41.

The spelling of 11919275312 in words is "eleven billion, nine hundred nineteen million, two hundred seventy-five thousand, three hundred twelve".