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20066796 = 22323117981
BaseRepresentation
bin100110010001…
…1000111101100
31101202111110200
41030203013230
520114114141
61554033500
7332364531
oct114430754
941674420
1020066796
1110366532
126878890
134207959
142944d88
151b65ab6
hex13231ec

20066796 has 36 divisors (see below), whose sum is σ = 52363584. Its totient is φ = 6472800.

The previous prime is 20066777. The next prime is 20066797. The reversal of 20066796 is 69766002.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20066796.

It is not an unprimeable number, because it can be changed into a prime (20066797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7875 + ... + 10106.

It is an arithmetic number, because the mean of its divisors is an integer number (1454544).

Almost surely, 220066796 is an apocalyptic number.

It is an amenable number.

20066796 is an abundant number, since it is smaller than the sum of its proper divisors (32296788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20066796 is a wasteful number, since it uses less digits than its factorization.

20066796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18022 (or 18017 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 20066796 is about 4479.5977497985. The cubic root of 20066796 is about 271.7436129327.

The spelling of 20066796 in words is "twenty million, sixty-six thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 17981 35962 53943 71924 107886 161829 215772 323658 557411 647316 1114822 1672233 2229644 3344466 5016699 6688932 10033398 20066796