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38605109 = 231799377
BaseRepresentation
bin1001001101000…
…1000100110101
32200122100020212
42103101010311
534340330414
63455235205
7646065224
oct223210465
980570225
1038605109
111a878654
1210b18b05
137cc897a
1451accbb
1535c883e
hex24d1135

38605109 has 8 divisors (see below), whose sum is σ = 40512960. Its totient is φ = 36716416.

The previous prime is 38605103. The next prime is 38605117. The reversal of 38605109 is 90150683.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38605109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38605103) 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, 572 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (5064120).

Almost surely, 238605109 is an apocalyptic number.

It is an amenable number.

38605109 is a deficient number, since it is larger than the sum of its proper divisors (1907851).

38605109 is a wasteful number, since it uses less digits than its factorization.

38605109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 38605109 is about 6213.3009745223. The cubic root of 38605109 is about 337.9726790703.

The spelling of 38605109 in words is "thirty-eight million, six hundred five thousand, one hundred nine".

Divisors: 1 23 179 4117 9377 215671 1678483 38605109