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2020021330 = 255314712591
BaseRepresentation
bin111100001100111…
…0001010001010010
312012210000201022211
41320121301101102
513114111140310
6532240022334
7101025620005
oct17031612122
95183021284
102020021330
11947281a18
124846019aa
132626673c2
141523cb53c
15bc519c8a
hex78671452

2020021330 has 32 divisors (see below), whose sum is σ = 3708592128. Its totient is φ = 791918400.

The previous prime is 2020021321. The next prime is 2020021343. The reversal of 2020021330 is 331200202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020021330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778335 + ... + 780925.

It is an arithmetic number, because the mean of its divisors is an integer number (115893504).

Almost surely, 22020021330 is an apocalyptic number.

2020021330 is a deficient number, since it is larger than the sum of its proper divisors (1688570798).

2020021330 is a wasteful number, since it uses less digits than its factorization.

2020021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2020021330 is about 44944.6474009976. The cubic root of 2020021330 is about 1264.1113142535. Note that the first 3 decimals are identical.

Adding to 2020021330 its reverse (331200202), we get a palindrome (2351221532).

The spelling of 2020021330 in words is "two billion, twenty million, twenty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 1471 2591 2942 5182 7355 12955 14710 25910 77963 137323 155926 274646 389815 686615 779630 1373230 3811361 7622722 19056805 38113610 202002133 404004266 1010010665 2020021330