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20186310907 = 74196882479
BaseRepresentation
bin10010110011001100…
…101010100011111011
31221002211002211202201
4102303030222203323
5312320143422112
613135022411031
71313143545250
oct226314524373
957084084681
1020186310907
118619712184
123ab4430a77
131b9917b189
14d96d43427
157d22be257
hex4b332a8fb

20186310907 has 8 divisors (see below), whose sum is σ = 23125132800. Its totient is φ = 17261254824.

The previous prime is 20186310899. The next prime is 20186310929. The reversal of 20186310907 is 70901368102.

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 20186310907 - 23 = 20186310899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20186313907) 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, 3438307 + ... + 3444172.

It is an arithmetic number, because the mean of its divisors is an integer number (2890641600).

Almost surely, 220186310907 is an apocalyptic number.

20186310907 is a deficient number, since it is larger than the sum of its proper divisors (2938821893).

20186310907 is an equidigital number, since it uses as much as digits as its factorization.

20186310907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6882905.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 20186310907 in words is "twenty billion, one hundred eighty-six million, three hundred ten thousand, nine hundred seven".

Divisors: 1 7 419 2933 6882479 48177353 2883758701 20186310907