Base | Representation |
---|---|
bin | 100011011011000111… |
… | …110111111001111101 |
3 | 10122011210110122100222 |
4 | 203123013313321331 |
5 | 1110344204401134 |
6 | 25250135431125 |
7 | 2514365526134 |
oct | 433307677175 |
9 | 118153418328 |
10 | 38036012669 |
11 | 15149379316 |
12 | 74562254a5 |
13 | 3782206b95 |
14 | 1bab80891b |
15 | ec9389a2e |
hex | 8db1f7e7d |
38036012669 has 4 divisors (see below), whose sum is σ = 38059595196. Its totient is φ = 38012430144.
The previous prime is 38036012639. The next prime is 38036012737. The reversal of 38036012669 is 96621063083.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96621063083 = 59 ⋅1637645137.
It can be written as a sum of positive squares in 2 ways, for example, as 9555062500 + 28480950169 = 97750^2 + 168763^2 .
It is a cyclic number.
It is not a de Polignac number, because 38036012669 - 216 = 38035947133 is a prime.
It is a super-2 number, since 2×380360126692 (a number of 22 digits) contains 22 as substring.
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 (38036012639) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11788844 + ... + 11792069.
It is an arithmetic number, because the mean of its divisors is an integer number (9514898799).
Almost surely, 238036012669 is an apocalyptic number.
It is an amenable number.
38036012669 is a deficient number, since it is larger than the sum of its proper divisors (23582527).
38036012669 is a wasteful number, since it uses less digits than its factorization.
38036012669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23582526.
The product of its (nonzero) digits is 279936, while the sum is 44.
The spelling of 38036012669 in words is "thirty-eight billion, thirty-six million, twelve thousand, six hundred sixty-nine".
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