Base | Representation |
---|---|
bin | 11010110010101001… |
… | …010111101011111111 |
3 | 2202020211011122221210 |
4 | 122302221113223333 |
5 | 432403322240101 |
6 | 21114304255503 |
7 | 2035605256461 |
oct | 326251275377 |
9 | 82224148853 |
10 | 28766993151 |
11 | 11222243806 |
12 | 56aa011593 |
13 | 2935ab5150 |
14 | 156c7a6131 |
15 | b3576d7d6 |
hex | 6b2a57aff |
28766993151 has 16 divisors (see below), whose sum is σ = 42638919680. Its totient is φ = 17131707360.
The previous prime is 28766993131. The next prime is 28766993179. The reversal of 28766993151 is 15139966782.
It is not a de Polignac number, because 28766993151 - 210 = 28766992127 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 28766993091 and 28766993100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28766993131) by changing a digit.
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, 11895811 + ... + 11898228.
It is an arithmetic number, because the mean of its divisors is an integer number (2664932480).
Almost surely, 228766993151 is an apocalyptic number.
28766993151 is a deficient number, since it is larger than the sum of its proper divisors (13871926529).
28766993151 is a wasteful number, since it uses less digits than its factorization.
28766993151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23794086.
The product of its digits is 4898880, while the sum is 57.
The spelling of 28766993151 in words is "twenty-eight billion, seven hundred sixty-six million, nine hundred ninety-three thousand, one hundred fifty-one".
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