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13730109 = 36783823
BaseRepresentation
bin110100011000…
…000100111101
3221211120011120
4310120010331
512003330414
61210141153
7224463321
oct64300475
927746146
1013730109
1178286a8
1247217b9
132ac9633
141b75981
1513132a9
hexd1813d

13730109 has 16 divisors (see below), whose sum is σ = 18826752. Its totient is φ = 8897328.

The previous prime is 13730089. The next prime is 13730111. The reversal of 13730109 is 90103731.

It is not a de Polignac number, because 13730109 - 25 = 13730077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13730809) 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, 16272 + ... + 17094.

It is an arithmetic number, because the mean of its divisors is an integer number (1176672).

Almost surely, 213730109 is an apocalyptic number.

It is an amenable number.

13730109 is a deficient number, since it is larger than the sum of its proper divisors (5096643).

13730109 is an equidigital number, since it uses as much as digits as its factorization.

13730109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 13730109 is about 3705.4161709584. The cubic root of 13730109 is about 239.4554145179.

The spelling of 13730109 in words is "thirteen million, seven hundred thirty thousand, one hundred nine".

Divisors: 1 3 67 83 201 249 823 2469 5561 16683 55141 68309 165423 204927 4576703 13730109