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38693111069 = 174969458053
BaseRepresentation
bin100100000010010010…
…100000010100011101
310200212120220200220202
4210002102200110131
51113220414023234
625435251353245
72536565005664
oct440222402435
9120776820822
1038693111069
1115456286048
1275ba2b2825
1338583a4ac2
141c30bb5ddb
151016dd577e
hex9024a051d

38693111069 has 8 divisors (see below), whose sum is σ = 40977510840. Its totient is φ = 36409637376.

The previous prime is 38693111059. The next prime is 38693111111. The reversal of 38693111069 is 96011139683.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1129632100 + 37563478969 = 33610^2 + 193813^2 .

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 38693111069 - 24 = 38693111053 is a prime.

It is a super-2 number, since 2×386931110692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38693111059) 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, 144554 + ... + 313499.

It is an arithmetic number, because the mean of its divisors is an integer number (5122188855).

Almost surely, 238693111069 is an apocalyptic number.

It is an amenable number.

38693111069 is a deficient number, since it is larger than the sum of its proper divisors (2284399771).

38693111069 is a wasteful number, since it uses less digits than its factorization.

38693111069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463039.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 38693111069 in words is "thirty-eight billion, six hundred ninety-three million, one hundred eleven thousand, sixty-nine".

Divisors: 1 17 4969 84473 458053 7786901 2276065357 38693111069