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9105021093 = 37322339679
BaseRepresentation
bin10000111101011001…
…11001100010100101
3212111112200222212110
420132230321202211
5122121341133333
64103252111233
7441426255000
oct103654714245
925445628773
109105021093
113952602123
121921305519
13b2146135c
14625352537
15384524063
hex21eb398a5

9105021093 has 32 divisors (see below), whose sum is σ = 14221312000. Its totient is φ = 5179407408.

The previous prime is 9105021077. The next prime is 9105021097. The reversal of 9105021093 is 3901205019.

9105021093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9105021093 - 24 = 9105021077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9105021093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9105021097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209628 + ... + 249306.

It is an arithmetic number, because the mean of its divisors is an integer number (444416000).

Almost surely, 29105021093 is an apocalyptic number.

It is an amenable number.

9105021093 is a deficient number, since it is larger than the sum of its proper divisors (5116290907).

9105021093 is a wasteful number, since it uses less digits than its factorization.

9105021093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39926 (or 39912 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 9105021093 is about 95420.2341906579. The cubic root of 9105021093 is about 2088.1433946731.

The spelling of 9105021093 in words is "nine billion, one hundred five million, twenty-one thousand, ninety-three".

Divisors: 1 3 7 21 49 147 223 343 669 1029 1561 4683 10927 32781 39679 76489 119037 229467 277753 833259 1944271 5832813 8848417 13609897 26545251 40829691 61938919 185816757 433572433 1300717299 3035007031 9105021093