Base | Representation |
---|---|
bin | 11000011100100111… |
… | …11101100011101101 |
3 | 1020212201000212212220 |
4 | 30032103331203231 |
5 | 203340001001124 |
6 | 10010214345553 |
7 | 643151536104 |
oct | 141623754355 |
9 | 36781025786 |
10 | 13125015789 |
11 | 5625802696 |
12 | 266365b2b9 |
13 | 1312263942 |
14 | 8c71cd03b |
15 | 51c3e8879 |
hex | 30e4fd8ed |
13125015789 has 16 divisors (see below), whose sum is σ = 17606160000. Its totient is φ = 8697092096.
The previous prime is 13125015731. The next prime is 13125015797. The reversal of 13125015789 is 98751052131.
It is a cyclic number.
It is not a de Polignac number, because 13125015789 - 224 = 13108238573 is a prime.
It is a super-2 number, since 2×131250157892 (a number of 21 digits) contains 22 as substring.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 13125015789.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13125015889) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335737 + ... + 372785.
It is an arithmetic number, because the mean of its divisors is an integer number (1100385000).
Almost surely, 213125015789 is an apocalyptic number.
It is an amenable number.
13125015789 is a deficient number, since it is larger than the sum of its proper divisors (4481144211).
13125015789 is a wasteful number, since it uses less digits than its factorization.
13125015789 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37764.
The product of its (nonzero) digits is 75600, while the sum is 42.
The spelling of 13125015789 in words is "thirteen billion, one hundred twenty-five million, fifteen thousand, seven hundred eighty-nine".
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