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9390908993 = 231433284927
BaseRepresentation
bin10001011111011110…
…11110011001000001
3220020110122121100012
420233233132121001
5123213033041433
64151503434305
7451500260264
oct105757363101
926213577305
109390908993
113a89a17a14
1219a0bb5995
13b6875a9ab
146512d0cdb
1539e696848
hex22fbde641

9390908993 has 8 divisors (see below), whose sum is σ = 9806082048. Its totient is φ = 8976308704.

The previous prime is 9390908983. The next prime is 9390909037. The reversal of 9390908993 is 3998090939.

It is a happy number.

9390908993 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 not a de Polignac number, because 9390908993 - 24 = 9390908977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9390908983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109505 + ... + 175422.

It is an arithmetic number, because the mean of its divisors is an integer number (1225760256).

Almost surely, 29390908993 is an apocalyptic number.

It is an amenable number.

9390908993 is a deficient number, since it is larger than the sum of its proper divisors (415173055).

9390908993 is a wasteful number, since it uses less digits than its factorization.

9390908993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286383.

The product of its (nonzero) digits is 4251528, while the sum is 59.

The square root of 9390908993 is about 96906.7025184533. The cubic root of 9390908993 is about 2109.7737149423.

The spelling of 9390908993 in words is "nine billion, three hundred ninety million, nine hundred eight thousand, nine hundred ninety-three".

Divisors: 1 23 1433 32959 284927 6553321 408300391 9390908993