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20325304671 = 37967871651
BaseRepresentation
bin10010111011011110…
…111000100101011111
31221110111122110100220
4102323132320211133
5313111234222141
613200505452423
71316452145010
oct227336704537
957414573326
1020325304671
118690117261
123b32aa1113
131bbbbc54c9
14dab5a5007
157de5c7766
hex4bb7b895f

20325304671 has 8 divisors (see below), whose sum is σ = 30971892864. Its totient is φ = 11614459800.

The previous prime is 20325304619. The next prime is 20325304679. The reversal of 20325304671 is 17640352302.

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

It is not a de Polignac number, because 20325304671 - 218 = 20325042527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325304679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483935805 + ... + 483935846.

It is an arithmetic number, because the mean of its divisors is an integer number (3871486608).

Almost surely, 220325304671 is an apocalyptic number.

20325304671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20325304671 is a deficient number, since it is larger than the sum of its proper divisors (10646588193).

20325304671 is an equidigital number, since it uses as much as digits as its factorization.

20325304671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967871661.

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 20325304671 its reverse (17640352302), we get a palindrome (37965656973).

The spelling of 20325304671 in words is "twenty billion, three hundred twenty-five million, three hundred four thousand, six hundred seventy-one".

Divisors: 1 3 7 21 967871651 2903614953 6775101557 20325304671