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1212114355 = 5242422871
BaseRepresentation
bin100100000111111…
…0110010110110011
310010110210210022021
41020033312112303
54440300124410
6320135452311
742015542044
oct11017662663
93113723267
101212114355
11572230501
12299b27097
1316417653a
14b6da48cb
157162eeda
hex483f65b3

1212114355 has 4 divisors (see below), whose sum is σ = 1454537232. Its totient is φ = 969691480.

The previous prime is 1212114341. The next prime is 1212114359. The reversal of 1212114355 is 5534112121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5534112121 = 19291269059.

It is not a de Polignac number, because 1212114355 - 27 = 1212114227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212114359) by changing a digit.

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, 121211431 + ... + 121211440.

It is an arithmetic number, because the mean of its divisors is an integer number (363634308).

Almost surely, 21212114355 is an apocalyptic number.

1212114355 is a deficient number, since it is larger than the sum of its proper divisors (242422877).

1212114355 is an equidigital number, since it uses as much as digits as its factorization.

1212114355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242422876.

The product of its digits is 1200, while the sum is 25.

The square root of 1212114355 is about 34815.4327130943. The cubic root of 1212114355 is about 1066.2225536691. Note that the first 3 decimals are identical.

Adding to 1212114355 its reverse (5534112121), we get a palindrome (6746226476).

The spelling of 1212114355 in words is "one billion, two hundred twelve million, one hundred fourteen thousand, three hundred fifty-five".

Divisors: 1 5 242422871 1212114355