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38388051 = 3213328103
BaseRepresentation
bin1001001001110…
…0000101010011
32200020022111200
42102130011103
534311404201
63450442243
7644202342
oct222340523
980208450
1038388051
111a73a569
1210a33383
137c50c30
145153b59
153584386
hex249c153

38388051 has 12 divisors (see below), whose sum is σ = 59714928. Its totient is φ = 23623344.

The previous prime is 38388029. The next prime is 38388061. The reversal of 38388051 is 15088383.

It is a happy number.

It is not a de Polignac number, because 38388051 - 217 = 38256979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38387997 and 38388015.

It is not an unprimeable number, because it can be changed into a prime (38388061) 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 11 ways as a sum of consecutive naturals, for example, 163935 + ... + 164168.

It is an arithmetic number, because the mean of its divisors is an integer number (4976244).

Almost surely, 238388051 is an apocalyptic number.

38388051 is a deficient number, since it is larger than the sum of its proper divisors (21326877).

38388051 is a wasteful number, since it uses less digits than its factorization.

38388051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328122 (or 328119 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 38388051 is about 6195.8091481259. The cubic root of 38388051 is about 337.3380688205.

The spelling of 38388051 in words is "thirty-eight million, three hundred eighty-eight thousand, fifty-one".

Divisors: 1 3 9 13 39 117 328103 984309 2952927 4265339 12796017 38388051