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38102689217 = 319277132491
BaseRepresentation
bin100011011111000110…
…001110010111000001
310122100102221011101202
4203133012032113001
51111013242023332
625300520510545
72516135341325
oct433706162701
9118312834352
1038102689217
1115182a7a3aa
12747461b455
133792c80a68
141bb6603985
15ed015aa62
hex8df18e5c1

38102689217 has 8 divisors (see below), whose sum is σ = 39336344832. Its totient is φ = 36869317200.

The previous prime is 38102689211. The next prime is 38102689223. The reversal of 38102689217 is 71298620183.

It is a happy number.

38102689217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38102689211) and next prime (38102689223).

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 38102689217 - 24 = 38102689201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38102689211) 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, 221342 + ... + 353832.

It is an arithmetic number, because the mean of its divisors is an integer number (4917043104).

Almost surely, 238102689217 is an apocalyptic number.

It is an amenable number.

38102689217 is a deficient number, since it is larger than the sum of its proper divisors (1233655615).

38102689217 is a wasteful number, since it uses less digits than its factorization.

38102689217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141799.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 38102689217 in words is "thirty-eight billion, one hundred two million, six hundred eighty-nine thousand, two hundred seventeen".

Divisors: 1 31 9277 132491 287587 4107221 1229119007 38102689217