Base | Representation |
---|---|
bin | 11100001100100110… |
… | …01010001110101011 |
3 | 1110001222221201010121 |
4 | 32012103022032223 |
5 | 222000321241332 |
6 | 10542045224111 |
7 | 1044064325101 |
oct | 160623121653 |
9 | 43058851117 |
10 | 15138071467 |
11 | 6469057172 |
12 | 2b25862037 |
13 | 157332c64c |
14 | a386c5c71 |
15 | 5d8ed9797 |
hex | 3864ca3ab |
15138071467 has 4 divisors (see below), whose sum is σ = 15138599416. Its totient is φ = 15137543520.
The previous prime is 15138071461. The next prime is 15138071477. The reversal of 15138071467 is 76417083151.
15138071467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 15138071467 - 219 = 15137547179 is a prime.
It is a super-2 number, since 2×151380714672 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (15138071461) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218334 + ... + 279187.
It is an arithmetic number, because the mean of its divisors is an integer number (3784649854).
Almost surely, 215138071467 is an apocalyptic number.
15138071467 is a deficient number, since it is larger than the sum of its proper divisors (527949).
15138071467 is an equidigital number, since it uses as much as digits as its factorization.
15138071467 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 527948.
The product of its (nonzero) digits is 141120, while the sum is 43.
The spelling of 15138071467 in words is "fifteen billion, one hundred thirty-eight million, seventy-one thousand, four hundred sixty-seven".
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