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38385972008 = 2313934519759
BaseRepresentation
bin100011101111111110…
…110111001100101000
310200002011222102022222
4203233332313030220
51112103302101013
625345000333212
72526145243556
oct435776671450
9120064872288
1038385972008
1115308975a0a
127533474208
133809877707
141c020a4bd6
15ee9e66508
hex8effb7328

38385972008 has 16 divisors (see below), whose sum is σ = 72491496000. Its totient is φ = 19054906416.

The previous prime is 38385971993. The next prime is 38385972017. The reversal of 38385972008 is 80027958383.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17258768 + ... + 17260991.

It is an arithmetic number, because the mean of its divisors is an integer number (4530718500).

Almost surely, 238385972008 is an apocalyptic number.

It is an amenable number.

38385972008 is a deficient number, since it is larger than the sum of its proper divisors (34105523992).

38385972008 is a wasteful number, since it uses less digits than its factorization.

38385972008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34519904 (or 34519900 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 38385972008 in words is "thirty-eight billion, three hundred eighty-five million, nine hundred seventy-two thousand, eight".

Divisors: 1 2 4 8 139 278 556 1112 34519759 69039518 138079036 276158072 4798246501 9596493002 19192986004 38385972008