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38309011 = 1328110487
BaseRepresentation
bin1001001000100…
…0110010010011
32200002022002021
42102020302103
534301342021
63445032311
7643423036
oct222106223
980068067
1038309011
111a696144
12109b5697
137c23c70
14513301d
15356ac41
hex2488c93

38309011 has 8 divisors (see below), whose sum is σ = 41406624. Its totient is φ = 35232960.

The previous prime is 38309003. The next prime is 38309017. The reversal of 38309011 is 11090383.

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 38309011 - 23 = 38309003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38309017) 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, 1591 + ... + 8896.

It is an arithmetic number, because the mean of its divisors is an integer number (5175828).

Almost surely, 238309011 is an apocalyptic number.

38309011 is a deficient number, since it is larger than the sum of its proper divisors (3097613).

38309011 is a wasteful number, since it uses less digits than its factorization.

38309011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10781.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 38309011 is about 6189.4273563877. The cubic root of 38309011 is about 337.1063862975.

Adding to 38309011 its reverse (11090383), we get a palindrome (49399394).

The spelling of 38309011 in words is "thirty-eight million, three hundred nine thousand, eleven".

Divisors: 1 13 281 3653 10487 136331 2946847 38309011