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20045278001 = 73192374553
BaseRepresentation
bin10010101010110010…
…101010101100110001
31220201222201121222202
4102222302222230301
5312023042344001
613113023512545
71306512023510
oct225262525461
956658647882
1020045278001
118557045061
123a75158755
131b75b9b958
14d82310677
157c4c1196b
hex4aacaab31

20045278001 has 8 divisors (see below), whose sum is σ = 23647885824. Its totient is φ = 16627419360.

The previous prime is 20045277971. The next prime is 20045278009. The reversal of 20045278001 is 10087254002.

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 20045278001 - 234 = 2865408817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20045278009) 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, 46187060 + ... + 46187493.

It is an arithmetic number, because the mean of its divisors is an integer number (2955985728).

Almost surely, 220045278001 is an apocalyptic number.

It is an amenable number.

20045278001 is a deficient number, since it is larger than the sum of its proper divisors (3602607823).

20045278001 is an equidigital number, since it uses as much as digits as its factorization.

20045278001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92374591.

The product of its (nonzero) digits is 4480, while the sum is 29.

The spelling of 20045278001 in words is "twenty billion, forty-five million, two hundred seventy-eight thousand, one".

Divisors: 1 7 31 217 92374553 646621871 2863611143 20045278001