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109920041 = 7114193407
BaseRepresentation
bin1101000110100…
…11111100101001
321122211111221122
412203103330221
5211114420131
614523545025
72503206410
oct643237451
9248744848
10109920041
1157057610
123098b175
1319a07b5a
1410854477
1599b3d7b
hex68d3f29

109920041 has 16 divisors (see below), whose sum is σ = 137410560. Its totient is φ = 85422480.

The previous prime is 109920037. The next prime is 109920049. The reversal of 109920041 is 140029901.

It is not a de Polignac number, because 109920041 - 22 = 109920037 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109920049) 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, 30560 + ... + 33966.

It is an arithmetic number, because the mean of its divisors is an integer number (8588160).

Almost surely, 2109920041 is an apocalyptic number.

109920041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

109920041 is a deficient number, since it is larger than the sum of its proper divisors (27490519).

109920041 is a wasteful number, since it uses less digits than its factorization.

109920041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 109920041 is about 10484.2758929742. The cubic root of 109920041 is about 479.0258614617.

Adding to 109920041 its reverse (140029901), we get a palindrome (249949942).

The spelling of 109920041 in words is "one hundred nine million, nine hundred twenty thousand, forty-one".

Divisors: 1 7 11 77 419 2933 3407 4609 23849 32263 37477 262339 1427533 9992731 15702863 109920041