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91113 = 3112251
BaseRepresentation
bin10110001111101001
311121222120
4112033221
510403423
61541453
7526431
oct261751
9147876
1091113
1162500
1244889
1332619
14252c1
151bee3
hex163e9

91113 has 12 divisors (see below), whose sum is σ = 134064. Its totient is φ = 55000.

The previous prime is 91099. The next prime is 91121. The reversal of 91113 is 31119.

It is not a de Polignac number, because 91113 - 24 = 91097 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors.

91113 is a lucky number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 91092 and 91101.

It is not an unprimeable number, because it can be changed into a prime (91153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238 + ... + 488.

It is an arithmetic number, because the mean of its divisors is an integer number (11172).

291113 is an apocalyptic number.

It is an amenable number.

91113 is a deficient number, since it is larger than the sum of its proper divisors (42951).

91113 is a wasteful number, since it uses less digits than its factorization.

91113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 265 counting only the distinct ones).

The product of its digits is 27, while the sum is 15.

The square root of 91113 is about 301.8493001483. The cubic root of 91113 is about 44.9980246046.

The spelling of 91113 in words is "ninety-one thousand, one hundred thirteen".

Divisors: 1 3 11 33 121 251 363 753 2761 8283 30371 91113