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211121001892 = 22296612753417
BaseRepresentation
bin1100010010011111001…
…0101101010110100100
3202011221101102010010101
43010213302231112210
511424333434030032
6240553155433444
721152526623023
oct3044762552644
9664841363111
10211121001892
1181599335559
1234abbbb5884
1316ba7331778
14a30b08c8ba
155759965de7
hex3127cad5a4

211121001892 has 24 divisors (see below), whose sum is σ = 382780170360. Its totient is φ = 101766255360.

The previous prime is 211121001857. The next prime is 211121001893. The reversal of 211121001892 is 298100121112.

211121001892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 51867329536 + 159253672356 = 227744^2 + 399066^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 211121001892.

It is not an unprimeable number, because it can be changed into a prime (211121001893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300033 + ... + 1453384.

It is an arithmetic number, because the mean of its divisors is an integer number (15949173765).

Almost surely, 2211121001892 is an apocalyptic number.

It is an amenable number.

211121001892 is a deficient number, since it is larger than the sum of its proper divisors (171659168468).

211121001892 is a wasteful number, since it uses less digits than its factorization.

211121001892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754111 (or 2754109 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 211121001892 in words is "two hundred eleven billion, one hundred twenty-one million, one thousand, eight hundred ninety-two".

Divisors: 1 2 4 29 58 116 661 1322 2644 19169 38338 76676 2753417 5506834 11013668 79849093 159698186 319396372 1820008637 3640017274 7280034548 52780250473 105560500946 211121001892