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38902093 = 54771119
BaseRepresentation
bin1001010001100…
…1100101001101
32201012102122021
42110121211031
534424331333
63505450141
7651443116
oct224314515
981172567
1038902093
111aa6079a
1211040951
1380a0bb9
14524920d
15363682d
hex251994d

38902093 has 4 divisors (see below), whose sum is σ = 38973760. Its totient is φ = 38830428.

The previous prime is 38902067. The next prime is 38902111. The reversal of 38902093 is 39020983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39020983 = 42299227.

It is a cyclic number.

It is not a de Polignac number, because 38902093 - 29 = 38901581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38902013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35013 + ... + 36106.

It is an arithmetic number, because the mean of its divisors is an integer number (9743440).

Almost surely, 238902093 is an apocalyptic number.

It is an amenable number.

38902093 is a deficient number, since it is larger than the sum of its proper divisors (71667).

38902093 is an equidigital number, since it uses as much as digits as its factorization.

38902093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71666.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 38902093 is about 6237.1542389138. The cubic root of 38902093 is about 338.8371258672.

The spelling of 38902093 in words is "thirty-eight million, nine hundred two thousand, ninety-three".

Divisors: 1 547 71119 38902093