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1230302011 = 11939103049
BaseRepresentation
bin100100101010100…
…1110101100111011
310011202000211002011
41021111032230323
510004424131021
6322025350351
742326252221
oct11125165473
93152024064
101230302011
11581523124
122a40383b7
13167b73a73
14b957ab11
1573023de1
hex4954eb3b

1230302011 has 4 divisors (see below), whose sum is σ = 1230417000. Its totient is φ = 1230187024.

The previous prime is 1230302009. The next prime is 1230302027. The reversal of 1230302011 is 1102030321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1230302011 - 21 = 1230302009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230301982 and 1230302000.

It is not an unprimeable number, because it can be changed into a prime (1230302071) 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, 39586 + ... + 63463.

It is an arithmetic number, because the mean of its divisors is an integer number (307604250).

Almost surely, 21230302011 is an apocalyptic number.

1230302011 is a deficient number, since it is larger than the sum of its proper divisors (114989).

1230302011 is a wasteful number, since it uses less digits than its factorization.

1230302011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114988.

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

The square root of 1230302011 is about 35075.6612339668. The cubic root of 1230302011 is about 1071.5289554817.

Adding to 1230302011 its reverse (1102030321), we get a palindrome (2332332332).

The spelling of 1230302011 in words is "one billion, two hundred thirty million, three hundred two thousand, eleven".

Divisors: 1 11939 103049 1230302011