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2020121210005 = 51762992291699
BaseRepresentation
bin11101011001011000100…
…110110110110010010101
321011010021201110020002021
4131121120212312302111
5231044202012210010
64144010400213141
7265643325652633
oct35313046666225
97133251406067
102020121210005
11709801838768
1228761a60a1b1
1311865c09a8b2
146dabacc8353
15378346dc8da
hex1d6589b6c95

2020121210005 has 8 divisors (see below), whose sum is σ = 2424160260000. Its totient is φ = 1616087096016.

The previous prime is 2020121209991. The next prime is 2020121210071. The reversal of 2020121210005 is 5000121210202.

It is a happy number.

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 2020121210005 - 27 = 2020121209877 is a prime.

It is a super-2 number, since 2×20201212100052 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264355 + ... + 2027344.

It is an arithmetic number, because the mean of its divisors is an integer number (303020032500).

Almost surely, 22020121210005 is an apocalyptic number.

It is an amenable number.

2020121210005 is a deficient number, since it is larger than the sum of its proper divisors (404039049995).

2020121210005 is a wasteful number, since it uses less digits than its factorization.

2020121210005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468003.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 2020121210005 its reverse (5000121210202), we get a palindrome (7020242420207).

The spelling of 2020121210005 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred ten thousand, five".

Divisors: 1 5 176299 881495 2291699 11458495 404024242001 2020121210005