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20211450112 = 28711278711
BaseRepresentation
bin10010110100101100…
…100100000100000000
31221011120102001021101
4102310230210010000
5312343112400422
613141321304144
71313600330350
oct226454440400
957146361241
1020211450112
118631922687
123b00935054
131ba1440849
14d9a408b60
157d45d7c27
hex4b4b24100

20211450112 has 36 divisors (see below), whose sum is σ = 46107374656. Its totient is φ = 8662049280.

The previous prime is 20211450079. The next prime is 20211450151. The reversal of 20211450112 is 21105411202.

It is a self number, because there is not a number n which added to its sum of digits gives 20211450112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5637564 + ... + 5641147.

Almost surely, 220211450112 is an apocalyptic number.

It is an amenable number.

20211450112 is an abundant number, since it is smaller than the sum of its proper divisors (25895924544).

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

20211450112 is an equidigital number, since it uses as much as digits as its factorization.

20211450112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278734 (or 11278720 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 20211450112 its reverse (21105411202), we get a palindrome (41316861314).

The spelling of 20211450112 in words is "twenty billion, two hundred eleven million, four hundred fifty thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 896 1792 11278711 22557422 45114844 78950977 90229688 157901954 180459376 315803908 360918752 631607816 721837504 1263215632 1443675008 2526431264 2887350016 5052862528 10105725056 20211450112