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105944180 = 2255297209
BaseRepresentation
bin1100101000010…
…01010001110100
321101100112002112
412110021101310
5204110203210
614302430152
72424340106
oct624112164
9241315075
10105944180
1154891481
122b592358
1318c45284
14100db576
15947ad05
hex6509474

105944180 has 12 divisors (see below), whose sum is σ = 222482820. Its totient is φ = 42377664.

The previous prime is 105944173. The next prime is 105944183. The reversal of 105944180 is 81449501.

It can be written as a sum of positive squares in 2 ways, for example, as 19044496 + 86899684 = 4364^2 + 9322^2 .

It is a super-2 number, since 2×1059441802 = 22448338551744800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105944183) 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, 2648585 + ... + 2648624.

It is an arithmetic number, because the mean of its divisors is an integer number (18540235).

Almost surely, 2105944180 is an apocalyptic number.

105944180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105944180 is an abundant number, since it is smaller than the sum of its proper divisors (116538640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105944180 is a wasteful number, since it uses less digits than its factorization.

105944180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297218 (or 5297216 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 105944180 is about 10292.9189251640. The cubic root of 105944180 is about 473.1792606167.

The spelling of 105944180 in words is "one hundred five million, nine hundred forty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 5297209 10594418 21188836 26486045 52972090 105944180