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20066015051 = 233732338969
BaseRepresentation
bin10010101100000001…
…110001011101001011
31220210102202011212122
4102230001301131023
5312043344440201
613115044201455
71310153212415
oct225401613513
956712664778
1020066015051
118567819115
123a8009928b
131b7a27c6b4
14d84d8b9b5
157c695ae1b
hex4ac07174b

20066015051 has 8 divisors (see below), whose sum is σ = 20994594720. Its totient is φ = 19142114112.

The previous prime is 20066015009. The next prime is 20066015063. The reversal of 20066015051 is 15051066002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20066015051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20066015051.

It is not an unprimeable number, because it can be changed into a prime (20066015951) 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, 1160906 + ... + 1178063.

It is an arithmetic number, because the mean of its divisors is an integer number (2624324340).

Almost surely, 220066015051 is an apocalyptic number.

20066015051 is a deficient number, since it is larger than the sum of its proper divisors (928579669).

20066015051 is a wasteful number, since it uses less digits than its factorization.

20066015051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339365.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 20066015051 in words is "twenty billion, sixty-six million, fifteen thousand, fifty-one".

Divisors: 1 23 373 8579 2338969 53796287 872435437 20066015051