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2020404355 = 517411813203
BaseRepresentation
bin111100001101100…
…1110110010000011
312012210202011201221
41320123032302003
513114210414410
6532252135511
7101032103464
oct17033166203
95183664657
102020404355
11947513772
12484767597
1326276c848
1415248ad6b
15bc5934da
hex786cec83

2020404355 has 32 divisors (see below), whose sum is σ = 2645068608. Its totient is φ = 1475481600.

The previous prime is 2020404317. The next prime is 2020404371. The reversal of 2020404355 is 5534040202.

It is not a de Polignac number, because 2020404355 - 29 = 2020403843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 629184 + ... + 632386.

It is an arithmetic number, because the mean of its divisors is an integer number (82658394).

Almost surely, 22020404355 is an apocalyptic number.

2020404355 is a deficient number, since it is larger than the sum of its proper divisors (624664253).

2020404355 is a wasteful number, since it uses less digits than its factorization.

2020404355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2020404355 is about 44948.9082737279. The cubic root of 2020404355 is about 1264.1912070792.

Adding to 2020404355 its reverse (5534040202), we get a palindrome (7554444557).

The spelling of 2020404355 in words is "two billion, twenty million, four hundred four thousand, three hundred fifty-five".

Divisors: 1 5 17 41 85 181 205 697 905 3077 3203 3485 7421 15385 16015 37105 54451 126157 131323 272255 579743 630785 656615 2232491 2898715 9855631 11162455 23769463 49278155 118847315 404080871 2020404355