Base | Representation |
---|---|
bin | 10100111000110101… |
… | …01101000010000111 |
3 | 1001221112110101122001 |
4 | 22130122231002013 |
5 | 140431312233422 |
6 | 5052434450131 |
7 | 544616650516 |
oct | 123432550207 |
9 | 31845411561 |
10 | 11214180487 |
11 | 4835126864 |
12 | 220b733947 |
13 | 1099408273 |
14 | 78550467d |
15 | 45979a227 |
hex | 29c6ad087 |
11214180487 has 4 divisors (see below), whose sum is σ = 11276829720. Its totient is φ = 11151531256.
The previous prime is 11214180469. The next prime is 11214180499. The reversal of 11214180487 is 78408141211.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78408141211 = 281 ⋅279032531.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-11214180487 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 (11214180287) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31324348 + ... + 31324705.
It is an arithmetic number, because the mean of its divisors is an integer number (2819207430).
Almost surely, 211214180487 is an apocalyptic number.
11214180487 is a deficient number, since it is larger than the sum of its proper divisors (62649233).
11214180487 is an equidigital number, since it uses as much as digits as its factorization.
11214180487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62649232.
The product of its (nonzero) digits is 14336, while the sum is 37.
The spelling of 11214180487 in words is "eleven billion, two hundred fourteen million, one hundred eighty thousand, four hundred eighty-seven".
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