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1212310130 = 25121231013
BaseRepresentation
bin100100001000010…
…0110001001110010
310010111011201212012
41020100212021302
54440322411010
6320144002522
742020315603
oct11020461162
93114151765
101212310130
115723545a9
1229a000442
13164214695
14b7015daa
157166d005
hex48426272

1212310130 has 8 divisors (see below), whose sum is σ = 2182158252. Its totient is φ = 484924048.

The previous prime is 1212310117. The next prime is 1212310133. The reversal of 1212310130 is 310132121.

It can be written as a sum of positive squares in 2 ways, for example, as 1169708401 + 42601729 = 34201^2 + 6527^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1212310133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60615497 + ... + 60615516.

Almost surely, 21212310130 is an apocalyptic number.

1212310130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212310130 is a deficient number, since it is larger than the sum of its proper divisors (969848122).

1212310130 is a wasteful number, since it uses less digits than its factorization.

1212310130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121231020.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1212310130 is about 34818.2442119071. The cubic root of 1212310130 is about 1066.2799543267.

Adding to 1212310130 its reverse (310132121), we get a palindrome (1522442251).

The spelling of 1212310130 in words is "one billion, two hundred twelve million, three hundred ten thousand, one hundred thirty".

Divisors: 1 2 5 10 121231013 242462026 606155065 1212310130