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1230144422 = 21361775627
BaseRepresentation
bin100100101010010…
…1000001110100110
310011201201210220112
41021110220032212
510004404110142
6322022133022
742325024613
oct11124501646
93151653815
101230144422
11581425791
122a3b81172
13167b1a110
14b953950a
1572ee2382
hex495283a6

1230144422 has 16 divisors (see below), whose sum is σ = 2019735312. Its totient is φ = 558450720.

The previous prime is 1230144413. The next prime is 1230144427. The reversal of 1230144422 is 2244410321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230144427) 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 7 ways as a sum of consecutive naturals, for example, 386228 + ... + 389399.

It is an arithmetic number, because the mean of its divisors is an integer number (126233457).

Almost surely, 21230144422 is an apocalyptic number.

1230144422 is a deficient number, since it is larger than the sum of its proper divisors (789590890).

1230144422 is a wasteful number, since it uses less digits than its factorization.

1230144422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775703.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1230144422 is about 35073.4147467851. The cubic root of 1230144422 is about 1071.4832029252.

Adding to 1230144422 its reverse (2244410321), we get a palindrome (3474554743).

The spelling of 1230144422 in words is "one billion, two hundred thirty million, one hundred forty-four thousand, four hundred twenty-two".

Divisors: 1 2 13 26 61 122 793 1586 775627 1551254 10083151 20166302 47313247 94626494 615072211 1230144422