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38435780 = 2251921789
BaseRepresentation
bin1001001010011…
…1101111000100
32200022201222102
42102213233010
534314421110
63451451232
7644461445
oct222475704
980281872
1038435780
111a772409
1210a56b18
137c69886
1451672cc
1535935a5
hex24a7bc4

38435780 has 12 divisors (see below), whose sum is σ = 80715180. Its totient is φ = 15374304.

The previous prime is 38435777. The next prime is 38435797. The reversal of 38435780 is 8753483.

It is a happy number.

38435780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24760576 + 13675204 = 4976^2 + 3698^2 .

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 3 ways as a sum of consecutive naturals, for example, 960875 + ... + 960914.

It is an arithmetic number, because the mean of its divisors is an integer number (6726265).

Almost surely, 238435780 is an apocalyptic number.

It is an amenable number.

38435780 is an abundant number, since it is smaller than the sum of its proper divisors (42279400).

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

38435780 is a wasteful number, since it uses less digits than its factorization.

38435780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921798 (or 1921796 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 38435780 is about 6199.6596680786. The cubic root of 38435780 is about 337.4778183867.

The spelling of 38435780 in words is "thirty-eight million, four hundred thirty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 1921789 3843578 7687156 9608945 19217890 38435780