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20632407377 = 47716182921
BaseRepresentation
bin10011001101110010…
…011000110101010001
31222020220111220002012
4103031302120311101
5314223344014002
613251200032305
71330201366121
oct231562306521
958226456065
1020632407377
11882850204a
123bb9902695
131c3a70c19a
14dda2a6c81
1580b53ad52
hex4cdc98d51

20632407377 has 8 divisors (see below), whose sum is σ = 21368178432. Its totient is φ = 19909002400.

The previous prime is 20632407373. The next prime is 20632407379. The reversal of 20632407377 is 77370423602.

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 20632407377 - 22 = 20632407373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20632407371) 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, 3088124 + ... + 3094797.

It is an arithmetic number, because the mean of its divisors is an integer number (2671022304).

Almost surely, 220632407377 is an apocalyptic number.

It is an amenable number.

20632407377 is a deficient number, since it is larger than the sum of its proper divisors (735771055).

20632407377 is an equidigital number, since it uses as much as digits as its factorization.

20632407377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183039.

The product of its (nonzero) digits is 296352, while the sum is 41.

The spelling of 20632407377 in words is "twenty billion, six hundred thirty-two million, four hundred seven thousand, three hundred seventy-seven".

Divisors: 1 47 71 3337 6182921 290597287 438987391 20632407377