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11212142412 = 22337160115773
BaseRepresentation
bin10100111000100101…
…11011011101001100
31001221101121211220210
422130102323131030
5140430302024122
65052323042420
7544563431562
oct123422733514
931841554823
1011212142412
114833a645a9
12220ab10410
131098b736c3
14785133a32
154594e640c
hex29c4bb74c

11212142412 has 48 divisors (see below), whose sum is σ = 26887224672. Its totient is φ = 3633868800.

The previous prime is 11212142377. The next prime is 11212142423. The reversal of 11212142412 is 21424121211.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702958 + ... + 718730.

It is an arithmetic number, because the mean of its divisors is an integer number (560150514).

Almost surely, 211212142412 is an apocalyptic number.

11212142412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212142412 is an abundant number, since it is smaller than the sum of its proper divisors (15675082260).

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

11212142412 is a wasteful number, since it uses less digits than its factorization.

11212142412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17418 (or 17416 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 11212142412 its reverse (21424121211), we get a palindrome (32636263623).

The spelling of 11212142412 in words is "eleven billion, two hundred twelve million, one hundred forty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 1601 3202 4803 6404 9606 15773 19212 31546 47319 59237 63092 94638 118474 177711 189276 236948 355422 583601 710844 1167202 1750803 2334404 3501606 7003212 25252573 50505146 75757719 101010292 151515438 303030876 934345201 1868690402 2803035603 3737380804 5606071206 11212142412