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1232044420 = 22561602221
BaseRepresentation
bin100100101101111…
…1000000110000100
310011212022100012211
41021123320012010
510010400410140
6322130553204
742350130145
oct11133700604
93155270184
101232044420
11582503232
122a4738804
13168333b89
14b98b1acc
157326a2ea
hex496f8184

1232044420 has 12 divisors (see below), whose sum is σ = 2587293324. Its totient is φ = 492817760.

The previous prime is 1232044397. The next prime is 1232044477. The reversal of 1232044420 is 244402321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131928196 + 1100116224 = 11486^2 + 33168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1232044391 and 1232044400.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30801091 + ... + 30801130.

It is an arithmetic number, because the mean of its divisors is an integer number (215607777).

Almost surely, 21232044420 is an apocalyptic number.

1232044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232044420 is an abundant number, since it is smaller than the sum of its proper divisors (1355248904).

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

1232044420 is a wasteful number, since it uses less digits than its factorization.

1232044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61602230 (or 61602228 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1232044420 is about 35100.4903099658. The cubic root of 1232044420 is about 1072.0345660218.

Adding to 1232044420 its reverse (244402321), we get a palindrome (1476446741).

The spelling of 1232044420 in words is "one billion, two hundred thirty-two million, forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 61602221 123204442 246408884 308011105 616022210 1232044420