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11102105557 = 139449177887
BaseRepresentation
bin10100101011011110…
…01010111111010101
31001122201120101201201
422111233022333111
5140214114334212
65033352352501
7542056224454
oct122557127725
931581511651
1011102105557
114787938254
12219a0a5731
13107c12763a
1477468cb9b
1544ea0cb57
hex295bcafd5

11102105557 has 8 divisors (see below), whose sum is σ = 11206944000. Its totient is φ = 10997624064.

The previous prime is 11102105549. The next prime is 11102105587. The reversal of 11102105557 is 75550120111.

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 11102105557 - 23 = 11102105549 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 (11102105587) 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, 26533 + ... + 151354.

It is an arithmetic number, because the mean of its divisors is an integer number (1400868000).

Almost surely, 211102105557 is an apocalyptic number.

It is an amenable number.

11102105557 is a deficient number, since it is larger than the sum of its proper divisors (104838443).

11102105557 is a wasteful number, since it uses less digits than its factorization.

11102105557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178475.

The product of its (nonzero) digits is 1750, while the sum is 28.

Adding to 11102105557 its reverse (75550120111), we get a palindrome (86652225668).

The spelling of 11102105557 in words is "eleven billion, one hundred two million, one hundred five thousand, five hundred fifty-seven".

Divisors: 1 139 449 62411 177887 24726293 79871263 11102105557