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1230355332 = 223427713709
BaseRepresentation
bin100100101010101…
…1011101110000100
310011202010112020000
41021111123232010
510004432332312
6322030441300
742326563533
oct11125335604
93152115200
101230355332
1158155a198
122a4063230
13167b9210b
14b959231a
1573034adc
hex4955bb84

1230355332 has 60 divisors (see below), whose sum is σ = 3228238860. Its totient is φ = 408608064.

The previous prime is 1230355327. The next prime is 1230355333. The reversal of 1230355332 is 2335530321.

1230355332 is a `hidden beast` number, since 123 + 0 + 3 + 5 + 533 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 645973056 + 584382276 = 25416^2 + 24174^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1230355296 and 1230355305.

It is not an unprimeable number, because it can be changed into a prime (1230355333) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82894 + ... + 96602.

It is an arithmetic number, because the mean of its divisors is an integer number (53803981).

Almost surely, 21230355332 is an apocalyptic number.

1230355332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230355332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1614119430).

1230355332 is an abundant number, since it is smaller than the sum of its proper divisors (1997883528).

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

1230355332 is a wasteful number, since it uses less digits than its factorization.

1230355332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14002 (or 13991 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 1230355332 is about 35076.4213111885. The cubic root of 1230355332 is about 1071.5444351958.

Adding to 1230355332 its reverse (2335530321), we get a palindrome (3565885653).

The spelling of 1230355332 in words is "one billion, two hundred thirty million, three hundred fifty-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 277 324 554 831 1108 1662 2493 3324 4986 7479 9972 13709 14958 22437 27418 29916 41127 44874 54836 82254 89748 123381 164508 246762 370143 493524 740286 1110429 1480572 2220858 3797393 4441716 7594786 11392179 15189572 22784358 34176537 45568716 68353074 102529611 136706148 205059222 307588833 410118444 615177666 1230355332