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1230111338 = 21964750033
BaseRepresentation
bin100100101010010…
…0000001001101010
310011201200010112012
41021110200021222
510004402030323
6322021315522
742324526301
oct11124401152
93151603465
101230111338
11581402945
122a3b65ba2
13167b08041
14b952b438
1572ed7678
hex4952026a

1230111338 has 16 divisors (see below), whose sum is σ = 1945321920. Its totient is φ = 581772096.

The previous prime is 1230111331. The next prime is 1230111349. The reversal of 1230111338 is 8331110321.

It is not an unprimeable number, because it can be changed into a prime (1230111331) 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 7 ways as a sum of consecutive naturals, for example, 431 + ... + 49602.

It is an arithmetic number, because the mean of its divisors is an integer number (121582620).

Almost surely, 21230111338 is an apocalyptic number.

1230111338 is a deficient number, since it is larger than the sum of its proper divisors (715210582).

1230111338 is a wasteful number, since it uses less digits than its factorization.

1230111338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50701.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1230111338 is about 35072.9431043361. The cubic root of 1230111338 is about 1071.4735972054.

Adding to 1230111338 its reverse (8331110321), we get a palindrome (9561221659).

The spelling of 1230111338 in words is "one billion, two hundred thirty million, one hundred eleven thousand, three hundred thirty-eight".

Divisors: 1 2 19 38 647 1294 12293 24586 50033 100066 950627 1901254 32371351 64742702 615055669 1230111338