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10981288209 = 39901369703
BaseRepresentation
bin10100011101000100…
…10010100100010001
31001100022020020111010
422032202102210101
5134442202210314
65013355041133
7536061260343
oct121642224421
931308206433
1010981288209
114725718401
1221657401a9
1310600a5698
147625dd293
154440e5059
hex28e892911

10981288209 has 8 divisors (see below), whose sum is σ = 14643236032. Its totient is φ = 7320099600.

The previous prime is 10981288183. The next prime is 10981288217. The reversal of 10981288209 is 90288218901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10981288209 - 211 = 10981286161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10981288309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155149 + ... + 214554.

It is an arithmetic number, because the mean of its divisors is an integer number (1830404504).

Almost surely, 210981288209 is an apocalyptic number.

It is an amenable number.

10981288209 is a deficient number, since it is larger than the sum of its proper divisors (3661947823).

10981288209 is an equidigital number, since it uses as much as digits as its factorization.

10981288209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379607.

The product of its (nonzero) digits is 165888, while the sum is 48.

The spelling of 10981288209 in words is "ten billion, nine hundred eighty-one million, two hundred eighty-eight thousand, two hundred nine".

Divisors: 1 3 9901 29703 369703 1109109 3660429403 10981288209