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1099485481 = 7115485711
BaseRepresentation
bin100000110001000…
…1101000100101001
32211121212122112111
41001202031010221
54222432013411
6301033442321
736150321013
oct10142150451
92747778474
101099485481
115146a3796
122682703a1
13146a30733
14a60471b3
15667d3721
hex4188d129

1099485481 has 4 divisors (see below), whose sum is σ = 1114971264. Its totient is φ = 1083999700.

The previous prime is 1099485449. The next prime is 1099485487. The reversal of 1099485481 is 1845849901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1099485481 - 25 = 1099485449 is a prime.

It is a super-2 number, since 2×10994854812 = 2417736645859602722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099485487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7742785 + ... + 7742926.

It is an arithmetic number, because the mean of its divisors is an integer number (278742816).

Almost surely, 21099485481 is an apocalyptic number.

It is an amenable number.

1099485481 is a deficient number, since it is larger than the sum of its proper divisors (15485783).

1099485481 is an equidigital number, since it uses as much as digits as its factorization.

1099485481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15485782.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 1099485481 is about 33158.4903305322. The cubic root of 1099485481 is about 1032.1191425579.

The spelling of 1099485481 in words is "one billion, ninety-nine million, four hundred eighty-five thousand, four hundred eighty-one".

Divisors: 1 71 15485711 1099485481