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20417361293 = 72916765899
BaseRepresentation
bin10011000000111110…
…000011010110001101
31221200220212102022102
4103000332003112031
5313303321030133
613213554524445
71321650464450
oct230076032615
957626772272
1020417361293
11872808280a
123b59896725
131c04cb7594
14db98c9497
157e770d7e8
hex4c0f8358d

20417361293 has 4 divisors (see below), whose sum is σ = 23334127200. Its totient is φ = 17500595388.

The previous prime is 20417361287. The next prime is 20417361331. The reversal of 20417361293 is 39216371402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20417361293 - 24 = 20417361277 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 (20417361253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458382943 + ... + 1458382956.

It is an arithmetic number, because the mean of its divisors is an integer number (5833531800).

Almost surely, 220417361293 is an apocalyptic number.

It is an amenable number.

20417361293 is a deficient number, since it is larger than the sum of its proper divisors (2916765907).

20417361293 is an equidigital number, since it uses as much as digits as its factorization.

20417361293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916765906.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 20417361293 in words is "twenty billion, four hundred seventeen million, three hundred sixty-one thousand, two hundred ninety-three".

Divisors: 1 7 2916765899 20417361293