Search a number
-
+
1212214213 = 7499347041
BaseRepresentation
bin100100001000000…
…1110101111000101
310010110222212021201
41020100032233011
54440311323323
6320141542501
742016436140
oct11020165705
93113885251
101212214213
11572299531
12299b74a31
131641acb22
14b6dcd057
157164e8ad
hex4840ebc5

1212214213 has 8 divisors (see below), whose sum is σ = 1388168000. Its totient is φ = 1036955520.

The previous prime is 1212214207. The next prime is 1212214217. The reversal of 1212214213 is 3124122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212214213 - 29 = 1212213701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212214217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170028 + ... + 177013.

It is an arithmetic number, because the mean of its divisors is an integer number (173521000).

Almost surely, 21212214213 is an apocalyptic number.

It is an amenable number.

1212214213 is a deficient number, since it is larger than the sum of its proper divisors (175953787).

1212214213 is an equidigital number, since it uses as much as digits as its factorization.

1212214213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347547.

The product of its digits is 192, while the sum is 19.

The square root of 1212214213 is about 34816.8667889573. The cubic root of 1212214213 is about 1066.2518325150.

Adding to 1212214213 its reverse (3124122121), we get a palindrome (4336336334).

It can be divided in two parts, 12122 and 14213, that added together give a triangular number (26335 = T229).

The spelling of 1212214213 in words is "one billion, two hundred twelve million, two hundred fourteen thousand, two hundred thirteen".

Divisors: 1 7 499 3493 347041 2429287 173173459 1212214213