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105048691 = 112868171
BaseRepresentation
bin1100100001011…
…10101001110011
321022200000201021
412100232221303
5203343024231
614231320311
72413620256
oct620565163
9238600637
10105048691
115432a700
122b220097
13189c07b7
14dd4709d
159350811
hex642ea73

105048691 has 6 divisors (see below), whose sum is σ = 115466876. Its totient is φ = 95498700.

The previous prime is 105048667. The next prime is 105048707. The reversal of 105048691 is 196840501.

It is not a de Polignac number, because 105048691 - 213 = 105040499 is a prime.

It is a super-2 number, since 2×1050486912 = 22070454961626962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105048611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 433965 + ... + 434206.

Almost surely, 2105048691 is an apocalyptic number.

105048691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

105048691 is a deficient number, since it is larger than the sum of its proper divisors (10418185).

105048691 is an equidigital number, since it uses as much as digits as its factorization.

105048691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868193 (or 868182 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 105048691 is about 10249.3263681083. The cubic root of 105048691 is about 471.8423103299.

The spelling of 105048691 in words is "one hundred five million, forty-eight thousand, six hundred ninety-one".

Divisors: 1 11 121 868171 9549881 105048691