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38351081 = 1911991009
BaseRepresentation
bin1001001001001…
…1000011101001
32200011102210102
42102103003221
534304213311
63445555145
7643656506
oct222230351
980142712
1038351081
111a71480a
1210a15ab5
137c3a162
1451444ad
15357843b
hex24930e9

38351081 has 8 divisors (see below), whose sum is σ = 38784000. Its totient is φ = 37920960.

The previous prime is 38351077. The next prime is 38351083. The reversal of 38351081 is 18015383.

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 38351081 - 22 = 38351077 is a prime.

It is a super-2 number, since 2×383510812 = 2941610827737122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38351083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37505 + ... + 38513.

It is an arithmetic number, because the mean of its divisors is an integer number (4848000).

Almost surely, 238351081 is an apocalyptic number.

It is an amenable number.

38351081 is a deficient number, since it is larger than the sum of its proper divisors (432919).

38351081 is a wasteful number, since it uses less digits than its factorization.

38351081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 38351081 is about 6192.8249611950. The cubic root of 38351081 is about 337.2297417605.

The spelling of 38351081 in words is "thirty-eight million, three hundred fifty-one thousand, eighty-one".

Divisors: 1 191 199 1009 38009 192719 200791 38351081