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103961109 = 3719125919
BaseRepresentation
bin1100011001001…
…01001000010101
321020121202211110
412030211020111
5203103223414
614152125233
72401440420
oct614451025
9236552743
10103961109
115375757a
122a996819
13186cc765
14db429b7
1591d8459
hex6325215

103961109 has 16 divisors (see below), whose sum is σ = 159252480. Its totient is φ = 59093040.

The previous prime is 103961107. The next prime is 103961113. The reversal of 103961109 is 901169301.

It is not a de Polignac number, because 103961109 - 21 = 103961107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103961107) 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 15 ways as a sum of consecutive naturals, for example, 8949 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (9953280).

Almost surely, 2103961109 is an apocalyptic number.

It is an amenable number.

103961109 is a deficient number, since it is larger than the sum of its proper divisors (55291371).

103961109 is a wasteful number, since it uses less digits than its factorization.

103961109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26120.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 103961109 is about 10196.1320607375. The cubic root of 103961109 is about 470.2083111605.

The spelling of 103961109 in words is "one hundred three million, nine hundred sixty-one thousand, one hundred nine".

Divisors: 1 3 7 21 191 573 1337 4011 25919 77757 181433 544299 4950529 14851587 34653703 103961109