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4330431020 = 2251391557709
BaseRepresentation
bin1000000100001110…
…10010001000101100
3102011210110200121002
410002013102020230
532332042243040
61553412055432
7212212025216
oct40207221054
912153420532
104330431020
111922462a13
12a0a304578
13540215726
142d11a95b6
151a5295a15
hex1021d222c

4330431020 has 24 divisors (see below), whose sum is σ = 9159334800. Its totient is φ = 1719709632.

The previous prime is 4330431019. The next prime is 4330431023. The reversal of 4330431020 is 201340334.

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 = 4330430983 and 4330431001.

It is not an unprimeable number, because it can be changed into a prime (4330431023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776075 + ... + 781634.

It is an arithmetic number, because the mean of its divisors is an integer number (381638950).

Almost surely, 24330431020 is an apocalyptic number.

It is an amenable number.

4330431020 is an abundant number, since it is smaller than the sum of its proper divisors (4828903780).

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

4330431020 is a wasteful number, since it uses less digits than its factorization.

4330431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557857 (or 1557855 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 4330431020 is about 65806.0105157576. The cubic root of 4330431020 is about 1629.9603563445.

Adding to 4330431020 its reverse (201340334), we get a palindrome (4531771354).

The spelling of 4330431020 in words is "four billion, three hundred thirty million, four hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 1557709 3115418 6230836 7788545 15577090 31154180 216521551 433043102 866086204 1082607755 2165215510 4330431020