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11230091 = 311931877
BaseRepresentation
bin101010110101…
…101110001011
3210010112210022
4222311232023
510333330331
61040411055
7164311535
oct52655613
923115708
1011230091
116380374
123916a8b
132432732
1416c4855
15ebc67b
hexab5b8b

11230091 has 8 divisors (see below), whose sum is σ = 11658624. Its totient is φ = 10805760.

The previous prime is 11230073. The next prime is 11230097. The reversal of 11230091 is 19003211.

It is a happy number.

11230091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11230091 is a prime.

It is a super-2 number, since 2×112300912 = 252229887736562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11230097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5045 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (1457328).

Almost surely, 211230091 is an apocalyptic number.

11230091 is a deficient number, since it is larger than the sum of its proper divisors (428533).

11230091 is a wasteful number, since it uses less digits than its factorization.

11230091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 11230091 is about 3351.1327935491. The cubic root of 11230091 is about 223.9379810766.

It can be divided in two parts, 112 and 30091, that added together give a palindrome (30203).

The spelling of 11230091 in words is "eleven million, two hundred thirty thousand, ninety-one".

Divisors: 1 31 193 1877 5983 58187 362261 11230091