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20358386701 = 67093034489
BaseRepresentation
bin10010111101011101…
…000101010000001101
31221112210220012101021
4102331131011100031
5313143221333301
613204050514141
71320333301042
oct227535052015
957483805337
1020358386701
1186a7862284
123b41b95951
131bc5a09283
14db1b371c9
157e245e8a1
hex4bd74540d

20358386701 has 4 divisors (see below), whose sum is σ = 20361427900. Its totient is φ = 20355345504.

The previous prime is 20358386683. The next prime is 20358386809. The reversal of 20358386701 is 10768385302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17860986025 + 2497400676 = 133645^2 + 49974^2 .

It is a cyclic number.

It is not a de Polignac number, because 20358386701 - 217 = 20358255629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20358356701) 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 3 ways as a sum of consecutive naturals, for example, 1510536 + ... + 1523953.

It is an arithmetic number, because the mean of its divisors is an integer number (5090356975).

Almost surely, 220358386701 is an apocalyptic number.

It is an amenable number.

20358386701 is a deficient number, since it is larger than the sum of its proper divisors (3041199).

20358386701 is an equidigital number, since it uses as much as digits as its factorization.

20358386701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041198.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20358386701 in words is "twenty billion, three hundred fifty-eight million, three hundred eighty-six thousand, seven hundred one".

Divisors: 1 6709 3034489 20358386701