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13798085 = 571920749
BaseRepresentation
bin110100101000…
…101011000101
3221222000102012
4310220223011
512013014320
61211424005
7225165440
oct64505305
927860365
1013798085
117874784
124755005
132b21562
141b92657
1513284c5
hexd28ac5

13798085 has 16 divisors (see below), whose sum is σ = 19920000. Its totient is φ = 8963136.

The previous prime is 13798051. The next prime is 13798087. The reversal of 13798085 is 58089731.

It is a happy number.

It is not a de Polignac number, because 13798085 - 26 = 13798021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13798087) 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, 9710 + ... + 11039.

It is an arithmetic number, because the mean of its divisors is an integer number (1245000).

Almost surely, 213798085 is an apocalyptic number.

It is an amenable number.

13798085 is a deficient number, since it is larger than the sum of its proper divisors (6121915).

13798085 is a wasteful number, since it uses less digits than its factorization.

13798085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20780.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 13798085 is about 3714.5773649232. The cubic root of 13798085 is about 239.8499351236.

The spelling of 13798085 in words is "thirteen million, seven hundred ninety-eight thousand, eighty-five".

Divisors: 1 5 7 19 35 95 133 665 20749 103745 145243 394231 726215 1971155 2759617 13798085