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105531033689 = 19109113450943
BaseRepresentation
bin110001001001000100…
…0111100100001011001
3101002101122020222002022
41202102020330201121
53212111421034224
6120251424144225
710424104662104
oct1422210744131
9332348228068
10105531033689
1140834576624
1218552168075
139c4a69aa43
14517187573b
152b29ad965e
hex189223c859

105531033689 has 16 divisors (see below), whose sum is σ = 113096755200. Its totient is φ = 98182699776.

The previous prime is 105531033661. The next prime is 105531033719. The reversal of 105531033689 is 986330135501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105531033689 is a prime.

It is a super-2 number, since 2×1055310336892 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105531033389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8552 + ... + 459494.

It is an arithmetic number, because the mean of its divisors is an integer number (7068547200).

Almost surely, 2105531033689 is an apocalyptic number.

105531033689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

105531033689 is a deficient number, since it is larger than the sum of its proper divisors (7565721511).

105531033689 is a wasteful number, since it uses less digits than its factorization.

105531033689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451184.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 105531033689 in words is "one hundred five billion, five hundred thirty-one million, thirty-three thousand, six hundred eighty-nine".

Divisors: 1 19 109 113 2071 2147 12317 234023 450943 8567917 49152787 50956559 933902953 968174621 5554264931 105531033689