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91041 = 330347
BaseRepresentation
bin10110001110100001
311121212220
4112032201
510403131
61541253
7526266
oct261641
9147786
1091041
1162445
1244829
1332592
142526d
151be96
hex163a1

91041 has 4 divisors (see below), whose sum is σ = 121392. Its totient is φ = 60692.

The previous prime is 91033. The next prime is 91079. The reversal of 91041 is 14019.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14019 = 34673.

It is a cyclic number.

It is not a de Polignac number, because 91041 - 23 = 91033 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 91041.

It is not an unprimeable number, because it can be changed into a prime (91081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15171 + ... + 15176.

It is an arithmetic number, because the mean of its divisors is an integer number (30348).

291041 is an apocalyptic number.

It is an amenable number.

91041 is a deficient number, since it is larger than the sum of its proper divisors (30351).

91041 is a wasteful number, since it uses less digits than its factorization.

91041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30350.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 91041 is about 301.7300117655. The cubic root of 91041 is about 44.9861685887.

The spelling of 91041 in words is "ninety-one thousand, forty-one".

Divisors: 1 3 30347 91041