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38689659038 = 219344829519
BaseRepresentation
bin100100000010000101…
…010101100010011110
310200212100102022121202
4210002011111202132
51113214023042123
625435045355502
72536523450522
oct440205254236
9120770368552
1038689659038
1115454338528
1275b9108b92
133857766794
141c30557d82
151016952a28
hex90215589e

38689659038 has 4 divisors (see below), whose sum is σ = 58034488560. Its totient is φ = 19344829518.

The previous prime is 38689659037. The next prime is 38689659053. The reversal of 38689659038 is 83095698683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83095698683 = 471767993589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38689659037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9672414758 + ... + 9672414761.

It is an arithmetic number, because the mean of its divisors is an integer number (14508622140).

Almost surely, 238689659038 is an apocalyptic number.

38689659038 is a deficient number, since it is larger than the sum of its proper divisors (19344829522).

38689659038 is a wasteful number, since it uses less digits than its factorization.

38689659038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19344829521.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 38689659038 in words is "thirty-eight billion, six hundred eighty-nine million, six hundred fifty-nine thousand, thirty-eight".

Divisors: 1 2 19344829519 38689659038