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1212013030 = 25659183917
BaseRepresentation
bin100100000111101…
…1101100111100110
310010110121122022111
41020033131213212
54440233404110
6320133351234
742014640454
oct11017354746
93113548274
101212013030
11572171368
12299a9851a
1316413c397
14b6d799d4
157160ee8a
hex483dd9e6

1212013030 has 16 divisors (see below), whose sum is σ = 2184945840. Its totient is φ = 484066912.

The previous prime is 1212013009. The next prime is 1212013067. The reversal of 1212013030 is 303102121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212013030.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 85369 + ... + 98548.

It is an arithmetic number, because the mean of its divisors is an integer number (136559115).

Almost surely, 21212013030 is an apocalyptic number.

1212013030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212013030 is a deficient number, since it is larger than the sum of its proper divisors (972932810).

1212013030 is a wasteful number, since it uses less digits than its factorization.

1212013030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184583.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1212013030 is about 34813.9775090408. The cubic root of 1212013030 is about 1066.1928430481.

Adding to 1212013030 its reverse (303102121), we get a palindrome (1515115151).

The spelling of 1212013030 in words is "one billion, two hundred twelve million, thirteen thousand, thirty".

Divisors: 1 2 5 10 659 1318 3295 6590 183917 367834 919585 1839170 121201303 242402606 606006515 1212013030