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38980155 = 354755291
BaseRepresentation
bin1001010010110…
…0101000111011
32201100101201110
42110230220323
534434331110
63511251403
7652216524
oct224545073
981311643
1038980155
1120004405
1211079b63
1380ca5a6
14526984b
15364ea20
hex252ca3b

38980155 has 16 divisors (see below), whose sum is σ = 63696384. Its totient is φ = 20346720.

The previous prime is 38980121. The next prime is 38980169. The reversal of 38980155 is 55108983.

38980155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38980155 - 27 = 38980027 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 26941 + ... + 28350.

It is an arithmetic number, because the mean of its divisors is an integer number (3981024).

Almost surely, 238980155 is an apocalyptic number.

38980155 is a deficient number, since it is larger than the sum of its proper divisors (24716229).

38980155 is a wasteful number, since it uses less digits than its factorization.

38980155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55346.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 38980155 is about 6243.4089246180. The cubic root of 38980155 is about 339.0636143790.

The spelling of 38980155 in words is "thirty-eight million, nine hundred eighty thousand, one hundred fifty-five".

Divisors: 1 3 5 15 47 141 235 705 55291 165873 276455 829365 2598677 7796031 12993385 38980155