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38308161 = 319672073
BaseRepresentation
bin1001001000100…
…0100101000001
32200002020220210
42102020211001
534301330121
63445024333
7643420413
oct222104501
980066823
1038308161
111a695541
12109b50a9
137c23768
1451329b3
15356a876
hex2488941

38308161 has 8 divisors (see below), whose sum is σ = 53765920. Its totient is φ = 24194592.

The previous prime is 38308147. The next prime is 38308177. The reversal of 38308161 is 16180383.

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

It is not a de Polignac number, because 38308161 - 211 = 38306113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38308111) 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, 335980 + ... + 336093.

It is an arithmetic number, because the mean of its divisors is an integer number (6720740).

Almost surely, 238308161 is an apocalyptic number.

It is an amenable number.

38308161 is a deficient number, since it is larger than the sum of its proper divisors (15457759).

38308161 is a wasteful number, since it uses less digits than its factorization.

38308161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672095.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 38308161 is about 6189.3586905268. The cubic root of 38308161 is about 337.1038930412.

The spelling of 38308161 in words is "thirty-eight million, three hundred eight thousand, one hundred sixty-one".

Divisors: 1 3 19 57 672073 2016219 12769387 38308161