Base | Representation |
---|---|
bin | 100100000010011110… |
… | …110110001111010101 |
3 | 10200212211000002012112 |
4 | 210002132312033111 |
5 | 1113222231042311 |
6 | 25435445000405 |
7 | 2536634342654 |
oct | 440236661725 |
9 | 120784002175 |
10 | 38696346581 |
11 | 15458095a22 |
12 | 75bb3b3105 |
13 | 3858c686c9 |
14 | 1c313b919b |
15 | 101732428b |
hex | 9027b63d5 |
38696346581 has 8 divisors (see below), whose sum is σ = 39659332224. Its totient is φ = 37739180160.
The previous prime is 38696346551. The next prime is 38696346587. The reversal of 38696346581 is 18564369683.
38696346581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38696346581 - 26 = 38696346517 is a prime.
It is a super-2 number, since 2×386963465812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 38696346581.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38696346587) 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, 1441340 + ... + 1467941.
It is an arithmetic number, because the mean of its divisors is an integer number (4957416528).
Almost surely, 238696346581 is an apocalyptic number.
It is an amenable number.
38696346581 is a deficient number, since it is larger than the sum of its proper divisors (962985643).
38696346581 is a wasteful number, since it uses less digits than its factorization.
38696346581 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2909611.
The product of its digits is 22394880, while the sum is 59.
The spelling of 38696346581 in words is "thirty-eight billion, six hundred ninety-six million, three hundred forty-six thousand, five hundred eighty-one".
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