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211443400556 = 22225931233969
BaseRepresentation
bin1100010011101100000…
…0100011111101101100
3202012202212001122221122
43010323000203331230
511431014002304211
6241045153520112
721163523151563
oct3047300437554
9665685048848
10211443400556
1181744318433
1234b8bb73038
1316c290726cb
14a33bc12bda
155777deb6db
hex313b023f6c

211443400556 has 12 divisors (see below), whose sum is σ = 370029170280. Its totient is φ = 105720780480.

The previous prime is 211443400541. The next prime is 211443400577. The reversal of 211443400556 is 655004344112.

211443400556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2114434005562 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 786740 + ... + 1020708.

It is an arithmetic number, because the mean of its divisors is an integer number (30835764190).

Almost surely, 2211443400556 is an apocalyptic number.

It is an amenable number.

211443400556 is a deficient number, since it is larger than the sum of its proper divisors (158585769724).

211443400556 is a wasteful number, since it uses less digits than its factorization.

211443400556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459904 (or 459902 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 211443400556 its reverse (655004344112), we get a palindrome (866447744668).

The spelling of 211443400556 in words is "two hundred eleven billion, four hundred forty-three million, four hundred thousand, five hundred fifty-six".

Divisors: 1 2 4 225931 233969 451862 467938 903724 935876 52860850139 105721700278 211443400556