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38817383209 = 1122315824453
BaseRepresentation
bin100100001001101100…
…100100001100101001
310201012020202101020121
4210021230210030221
51113444222230314
625455451123241
72542634212303
oct441154441451
9121166671217
1038817383209
111550a4455a0
127633a43521
133878066407
141c434c4973
151022c81d24
hex909b24329

38817383209 has 8 divisors (see below), whose sum is σ = 42536132352. Its totient is φ = 35130283440.

The previous prime is 38817383201. The next prime is 38817383233. The reversal of 38817383209 is 90238371883.

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 38817383209 - 23 = 38817383201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38817383201) 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, 7909774 + ... + 7914679.

It is an arithmetic number, because the mean of its divisors is an integer number (5317016544).

Almost surely, 238817383209 is an apocalyptic number.

It is an amenable number.

38817383209 is a deficient number, since it is larger than the sum of its proper divisors (3718749143).

38817383209 is a wasteful number, since it uses less digits than its factorization.

38817383209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15824687.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 38817383209 in words is "thirty-eight billion, eight hundred seventeen million, three hundred eighty-three thousand, two hundred nine".

Divisors: 1 11 223 2453 15824453 174068983 3528853019 38817383209