Search a number
-
+
211021312232 = 2399126617219
BaseRepresentation
bin1100010010000111011…
…0011011000011101000
3202011200102211100121202
43010201312123003220
511424132423442412
6240535235023332
721150206362433
oct3044166330350
9664612740552
10211021312232
1181548036205
1234a9273ab48
1316b8c7992c3
14a2dbb3c81a
155750d233c2
hex3121d9b0e8

211021312232 has 16 divisors (see below), whose sum is σ = 396064233600. Its totient is φ = 105404183280.

The previous prime is 211021312219. The next prime is 211021312319. The reversal of 211021312232 is 232213120112.

211021312232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2110213122323 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13300682 + ... + 13316537.

It is an arithmetic number, because the mean of its divisors is an integer number (24754014600).

Almost surely, 2211021312232 is an apocalyptic number.

It is an amenable number.

211021312232 is a deficient number, since it is larger than the sum of its proper divisors (185042921368).

211021312232 is a wasteful number, since it uses less digits than its factorization.

211021312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26618216 (or 26618212 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211021312232 its reverse (232213120112), we get a palindrome (443234432344).

The spelling of 211021312232 in words is "two hundred eleven billion, twenty-one million, three hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 8 991 1982 3964 7928 26617219 53234438 106468876 212937752 26377664029 52755328058 105510656116 211021312232