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4230030440 = 235176220633
BaseRepresentation
bin1111110000100001…
…0010010001101000
3101220210112210220002
43330020102101220
532130341433230
61535424122132
7206552444156
oct37410222150
911823483802
104230030440
111880818529
129a0766348
135254917bc
142c1b123d6
1519b562545
hexfc212468

4230030440 has 32 divisors (see below), whose sum is σ = 10077427080. Its totient is φ = 1592481792.

The previous prime is 4230030397. The next prime is 4230030463. The reversal of 4230030440 is 440300324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4072226596 + 157803844 = 63814^2 + 12562^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 3109637 + ... + 3110996.

Almost surely, 24230030440 is an apocalyptic number.

4230030440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4230030440 is an abundant number, since it is smaller than the sum of its proper divisors (5847396640).

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

4230030440 is a wasteful number, since it uses less digits than its factorization.

4230030440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220661 (or 6220657 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4230030440 is about 65038.6841810318. The cubic root of 4230030440 is about 1617.2649118814.

Adding to 4230030440 its reverse (440300324), we get a palindrome (4670330764).

The spelling of 4230030440 in words is "four billion, two hundred thirty million, thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 6220633 12441266 24882532 31103165 49765064 62206330 105750761 124412660 211501522 248825320 423003044 528753805 846006088 1057507610 2115015220 4230030440