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43303030040 = 2351082575751
BaseRepresentation
bin101000010101000011…
…111100110100011000
311010202212021211220102
4220111003330310120
51202141033430130
631520530114532
73062042452664
oct502503746430
9133685254812
1043303030040
1117401482436
12848611ba48
134111485aca
14214b1358a4
1511d6987645
hexa150fcd18

43303030040 has 16 divisors (see below), whose sum is σ = 97431817680. Its totient is φ = 17321212000.

The previous prime is 43303030033. The next prime is 43303030049. The reversal of 43303030040 is 4003030334.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 43303029994 and 43303030021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43303030049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541287836 + ... + 541287915.

It is an arithmetic number, because the mean of its divisors is an integer number (6089488605).

Almost surely, 243303030040 is an apocalyptic number.

43303030040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43303030040 is an abundant number, since it is smaller than the sum of its proper divisors (54128787640).

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

43303030040 is a wasteful number, since it uses less digits than its factorization.

43303030040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082575762 (or 1082575758 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 43303030040 its reverse (4003030334), we get a palindrome (47306060374).

The spelling of 43303030040 in words is "forty-three billion, three hundred three million, thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 1082575751 2165151502 4330303004 5412878755 8660606008 10825757510 21651515020 43303030040