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43120303420 = 22561331106781
BaseRepresentation
bin101000001010001010…
…111001110100111100
311010022010110101002211
4220022022321310330
51201302244202140
631450441430204
73054363350215
oct501212716474
9133263411084
1043120303420
11173183181a7
128434a9b364
1340b2668b4c
142130b6c40c
1511c58e12ea
hexa0a2b9d3c

43120303420 has 48 divisors (see below), whose sum is σ = 92316028896. Its totient is φ = 16913952000.

The previous prime is 43120303417. The next prime is 43120303427. The reversal of 43120303420 is 2430302134.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43120303391 and 43120303400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43120303427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350430 + ... + 457210.

It is an arithmetic number, because the mean of its divisors is an integer number (1923250602).

Almost surely, 243120303420 is an apocalyptic number.

It is an amenable number.

43120303420 is an abundant number, since it is smaller than the sum of its proper divisors (49195725476).

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

43120303420 is a wasteful number, since it uses less digits than its factorization.

43120303420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107182 (or 107180 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 43120303420 its reverse (2430302134), we get a palindrome (45550605554).

The spelling of 43120303420 in words is "forty-three billion, one hundred twenty million, three hundred three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 331 610 662 1220 1324 1655 3310 6620 20191 40382 80764 100955 106781 201910 213562 403820 427124 533905 1067810 2135620 6513641 13027282 26054564 32568205 35344511 65136410 70689022 130272820 141378044 176722555 353445110 706890220 2156015171 4312030342 8624060684 10780075855 21560151710 43120303420