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3130123205 = 51156911331
BaseRepresentation
bin1011101010010001…
…1110001111000101
322002010212201211002
42322210132033011
522402302420310
61234333223045
7140365415426
oct27244361705
98063781732
103130123205
111366966990
12734331a85
133ab644111
142199d964d
15134be8da5
hexba91e3c5

3130123205 has 8 divisors (see below), whose sum is σ = 4097615904. Its totient is φ = 2276453200.

The previous prime is 3130123201. The next prime is 3130123223. The reversal of 3130123205 is 5023210313.

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

It is not a de Polignac number, because 3130123205 - 22 = 3130123201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130123201) 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 7 ways as a sum of consecutive naturals, for example, 28455611 + ... + 28455720.

It is an arithmetic number, because the mean of its divisors is an integer number (512201988).

Almost surely, 23130123205 is an apocalyptic number.

It is an amenable number.

3130123205 is a deficient number, since it is larger than the sum of its proper divisors (967492699).

3130123205 is a wasteful number, since it uses less digits than its factorization.

3130123205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56911347.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3130123205 is about 55947.5040104561. The cubic root of 3130123205 is about 1462.8073844856.

Adding to 3130123205 its reverse (5023210313), we get a palindrome (8153333518).

The spelling of 3130123205 in words is "three billion, one hundred thirty million, one hundred twenty-three thousand, two hundred five".

Divisors: 1 5 11 55 56911331 284556655 626024641 3130123205