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38897089 = 711505157
BaseRepresentation
bin1001010001100…
…0010111000001
32201012011202221
42110120113001
534424201324
63505411041
7651422410
oct224302701
981164687
1038897089
111aa57a60
1211039a81
13809b83a
145247477
1536350e4
hex25185c1

38897089 has 8 divisors (see below), whose sum is σ = 48495168. Its totient is φ = 30309360.

The previous prime is 38897083. The next prime is 38897099. The reversal of 38897089 is 98079883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38897089 - 25 = 38897057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38897083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252502 + ... + 252655.

It is an arithmetic number, because the mean of its divisors is an integer number (6061896).

Almost surely, 238897089 is an apocalyptic number.

It is an amenable number.

38897089 is a deficient number, since it is larger than the sum of its proper divisors (9598079).

38897089 is a wasteful number, since it uses less digits than its factorization.

38897089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505175.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 38897089 is about 6236.7530815321. The cubic root of 38897089 is about 338.8225969687.

The spelling of 38897089 in words is "thirty-eight million, eight hundred ninety-seven thousand, eighty-nine".

Divisors: 1 7 11 77 505157 3536099 5556727 38897089