Base | Representation |
---|---|
bin | 11001010111100111… |
… | …01011010111011101 |
3 | 1022011012012001002010 |
4 | 30223303223113131 |
5 | 210343141303044 |
6 | 10131253021433 |
7 | 661340656215 |
oct | 145363532735 |
9 | 38135161063 |
10 | 13619869149 |
11 | 585a074307 |
12 | 2781324879 |
13 | 1390936293 |
14 | 932c05245 |
15 | 54aa96bb9 |
hex | 32bceb5dd |
13619869149 has 8 divisors (see below), whose sum is σ = 18582147232. Its totient is φ = 8868751920.
The previous prime is 13619869097. The next prime is 13619869157. The reversal of 13619869149 is 94196891631.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13619869149 - 29 = 13619868637 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13619869049) 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, 52790062 + ... + 52790319.
It is an arithmetic number, because the mean of its divisors is an integer number (2322768404).
Almost surely, 213619869149 is an apocalyptic number.
It is an amenable number.
13619869149 is a deficient number, since it is larger than the sum of its proper divisors (4962278083).
13619869149 is a wasteful number, since it uses less digits than its factorization.
13619869149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 105580427.
The product of its digits is 2519424, while the sum is 57.
The spelling of 13619869149 in words is "thirteen billion, six hundred nineteen million, eight hundred sixty-nine thousand, one hundred forty-nine".
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