Base | Representation |
---|---|
bin | 10100111000010101… |
… | …10000111001000011 |
3 | 1001221020121002210210 |
4 | 22130022300321003 |
5 | 140424230030422 |
6 | 5052205125203 |
7 | 544536305352 |
oct | 123412607103 |
9 | 31836532723 |
10 | 11210001987 |
11 | 4832832458 |
12 | 220a259803 |
13 | 10985a4392 |
14 | 784b37999 |
15 | 45922210c |
hex | 29c2b0e43 |
11210001987 has 8 divisors (see below), whose sum is σ = 14952062736. Its totient is φ = 7470637952.
The previous prime is 11210001973. The next prime is 11210001989. The reversal of 11210001987 is 78910001211.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 11210001987 - 26 = 11210001923 is a prime.
It is not an unprimeable number, because it can be changed into a prime (11210001989) 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, 664458 + ... + 681119.
It is an arithmetic number, because the mean of its divisors is an integer number (1869007842).
Almost surely, 211210001987 is an apocalyptic number.
11210001987 is a deficient number, since it is larger than the sum of its proper divisors (3742060749).
11210001987 is a wasteful number, since it uses less digits than its factorization.
11210001987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1348357.
The product of its (nonzero) digits is 1008, while the sum is 30.
The spelling of 11210001987 in words is "eleven billion, two hundred ten million, one thousand, nine hundred eighty-seven".
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