Base | Representation |
---|---|
bin | 11100001110011111… |
… | …11111111100110001 |
3 | 1110010002221222121101 |
4 | 32013033333330301 |
5 | 222013412121040 |
6 | 10543415124401 |
7 | 1044350021515 |
oct | 160717777461 |
9 | 43102858541 |
10 | 15154020145 |
11 | 647705a6a0 |
12 | 2b2b073701 |
13 | 1576724a34 |
14 | a3a878145 |
15 | 5da5da09a |
hex | 3873fff31 |
15154020145 has 16 divisors (see below), whose sum is σ = 19937692800. Its totient is φ = 10965715200.
The previous prime is 15154020137. The next prime is 15154020223. The reversal of 15154020145 is 54102045151.
It is not a de Polignac number, because 15154020145 - 23 = 15154020137 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681336 + ... + 703225.
It is an arithmetic number, because the mean of its divisors is an integer number (1246105800).
Almost surely, 215154020145 is an apocalyptic number.
It is an amenable number.
15154020145 is a deficient number, since it is larger than the sum of its proper divisors (4783672655).
15154020145 is a wasteful number, since it uses less digits than its factorization.
15154020145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1384776.
The product of its (nonzero) digits is 4000, while the sum is 28.
Adding to 15154020145 its reverse (54102045151), we get a palindrome (69256065296).
The spelling of 15154020145 in words is "fifteen billion, one hundred fifty-four million, twenty thousand, one hundred forty-five".
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