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38105666048 = 2986272
BaseRepresentation
bin100011011111010001…
…100101001000000000
310122100122112101211202
4203133101211020000
51111020022303143
625301104400332
72516202550202
oct433721451000
9118318471752
1038105666048
111518472299a
1274756160a8
1337937839b8
141bb6b7a772
15ed0547ab8
hex8df465200

38105666048 has 30 divisors (see below), whose sum is σ = 76145733411. Its totient is φ = 19050624512.

The previous prime is 38105666029. The next prime is 38105666051. The reversal of 38105666048 is 84066650183.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 19052833024 + 19052833024 = 138032^2 + 138032^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=138032.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38105665993 and 38105666011.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4412711 + ... + 4421337.

Almost surely, 238105666048 is an apocalyptic number.

It is an amenable number.

38105666048 is a deficient number, since it is larger than the sum of its proper divisors (38040067363).

38105666048 is an frugal number, since it uses more digits than its factorization.

38105666048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17272 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 38105666048 in words is "thirty-eight billion, one hundred five million, six hundred sixty-six thousand, forty-eight".

Divisors: 1 2 4 8 16 32 64 128 256 512 8627 17254 34508 69016 138032 276064 552128 1104256 2208512 4417024 74425129 148850258 297700516 595401032 1190802064 2381604128 4763208256 9526416512 19052833024 38105666048