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38986087 = 75569441
BaseRepresentation
bin1001010010111…
…0000101100111
32201100200212011
42110232011213
534440023322
63511335051
7652243030
oct224560547
981320764
1038986087
1120008908
1211081487
1381001ba
14526ba87
153651677
hex252e167

38986087 has 4 divisors (see below), whose sum is σ = 44555536. Its totient is φ = 33416640.

The previous prime is 38986067. The next prime is 38986093. The reversal of 38986087 is 78068983.

It is a happy number.

38986087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38986087 - 27 = 38985959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38986087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38986007) by changing a digit.

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, 2784714 + ... + 2784727.

It is an arithmetic number, because the mean of its divisors is an integer number (11138884).

Almost surely, 238986087 is an apocalyptic number.

38986087 is a deficient number, since it is larger than the sum of its proper divisors (5569449).

38986087 is an equidigital number, since it uses as much as digits as its factorization.

38986087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569448.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 38986087 is about 6243.8839675317. The cubic root of 38986087 is about 339.0808130736.

The spelling of 38986087 in words is "thirty-eight million, nine hundred eighty-six thousand, eighty-seven".

Divisors: 1 7 5569441 38986087