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1212313030 = 25121231303
BaseRepresentation
bin100100001000010…
…0110110111000110
310010111011212211121
41020100212313012
54440323004110
6320144024154
742020330215
oct11020466706
93114155747
101212313030
115723567a5
1229a00205a
13164215ab6
14b701707c
157166dcda
hex48426dc6

1212313030 has 8 divisors (see below), whose sum is σ = 2182163472. Its totient is φ = 484925208.

The previous prime is 1212313009. The next prime is 1212313033. The reversal of 1212313030 is 303132121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1212312995 and 1212313013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212313033) 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 3 ways as a sum of consecutive naturals, for example, 60615642 + ... + 60615661.

It is an arithmetic number, because the mean of its divisors is an integer number (272770434).

Almost surely, 21212313030 is an apocalyptic number.

1212313030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212313030 is a deficient number, since it is larger than the sum of its proper divisors (969850442).

1212313030 is a wasteful number, since it uses less digits than its factorization.

1212313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121231310.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1212313030 is about 34818.2858567162. The cubic root of 1212313030 is about 1066.2808045518.

Adding to 1212313030 its reverse (303132121), we get a palindrome (1515445151).

The spelling of 1212313030 in words is "one billion, two hundred twelve million, three hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 121231303 242462606 606156515 1212313030