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1230344412 = 2231144920759
BaseRepresentation
bin100100101010101…
…1001000011011100
310011202002222020120
41021111121003130
510004432010122
6322030314540
742326516643
oct11125310334
93152088216
101230344412
11581551a70
122a4058a50
13167b8a15b
14b958c35a
157303175c
hex495590dc

1230344412 has 48 divisors (see below), whose sum is σ = 3138912000. Its totient is φ = 371983360.

The previous prime is 1230344389. The next prime is 1230344413. The reversal of 1230344412 is 2144430321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230344413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48889 + ... + 69647.

It is an arithmetic number, because the mean of its divisors is an integer number (65394000).

Almost surely, 21230344412 is an apocalyptic number.

1230344412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230344412 is an abundant number, since it is smaller than the sum of its proper divisors (1908567588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230344412 is a wasteful number, since it uses less digits than its factorization.

1230344412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21226 (or 21224 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1230344412 is about 35076.2656507217. The cubic root of 1230344412 is about 1071.5412650277.

Adding to 1230344412 its reverse (2144430321), we get a palindrome (3374774733).

The spelling of 1230344412 in words is "one billion, two hundred thirty million, three hundred forty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 449 898 1347 1796 2694 4939 5388 9878 14817 19756 20759 29634 41518 59268 62277 83036 124554 228349 249108 456698 685047 913396 1370094 2740188 9320791 18641582 27962373 37283164 55924746 102528701 111849492 205057402 307586103 410114804 615172206 1230344412