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2020021110 = 232529376603
BaseRepresentation
bin111100001100111…
…0001001101110110
312012210000201000200
41320121301031312
513114111133420
6532240021330
7101025616242
oct17031611566
95183021020
102020021110
11947281838
12484601846
13262667283
141523cb422
15bc519b90
hex78671376

2020021110 has 48 divisors (see below), whose sum is σ = 5270048784. Its totient is φ = 536826816.

The previous prime is 2020021099. The next prime is 2020021111. The reversal of 2020021110 is 111200202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2020021092 and 2020021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020021111) 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 23 ways as a sum of consecutive naturals, for example, 11932 + ... + 64671.

It is an arithmetic number, because the mean of its divisors is an integer number (109792683).

Almost surely, 22020021110 is an apocalyptic number.

2020021110 is an abundant number, since it is smaller than the sum of its proper divisors (3250027674).

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

2020021110 is a wasteful number, since it uses less digits than its factorization.

2020021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76909 (or 76906 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2020021110 is about 44944.6449535426. The cubic root of 2020021110 is about 1264.1112683621. Note that the first 3 decimals are identical.

Adding to 2020021110 its reverse (111200202), we get a palindrome (2131221312).

The spelling of 2020021110 in words is "two billion, twenty million, twenty-one thousand, one hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 293 586 879 1465 1758 2637 2930 4395 5274 8790 13185 26370 76603 153206 229809 383015 459618 689427 766030 1149045 1378854 2298090 3447135 6894270 22444679 44889358 67334037 112223395 134668074 202002111 224446790 336670185 404004222 673340370 1010010555 2020021110