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2020351669 = 72691072943
BaseRepresentation
bin111100001101100…
…0001111010110101
312012210122111110121
41320123001322311
513114202223134
6532251051541
7101031464050
oct17033017265
95183574417
102020351669
11947488126
12484740bb1
1326275187b
14152475a97
15bc582ab4
hex786c1eb5

2020351669 has 8 divisors (see below), whose sum is σ = 2317559040. Its totient is φ = 1725290736.

The previous prime is 2020351667. The next prime is 2020351673. The reversal of 2020351669 is 9661530202.

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 2020351669 - 21 = 2020351667 is a prime.

It is a super-2 number, since 2×20203516692 = 8163641732862171122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020351661) 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 7 ways as a sum of consecutive naturals, for example, 534589 + ... + 538354.

It is an arithmetic number, because the mean of its divisors is an integer number (289694880).

Almost surely, 22020351669 is an apocalyptic number.

It is an amenable number.

2020351669 is a deficient number, since it is larger than the sum of its proper divisors (297207371).

2020351669 is a wasteful number, since it uses less digits than its factorization.

2020351669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073219.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 2020351669 is about 44948.3222045050. The cubic root of 2020351669 is about 1264.1802182299.

The spelling of 2020351669 in words is "two billion, twenty million, three hundred fifty-one thousand, six hundred sixty-nine".

Divisors: 1 7 269 1883 1072943 7510601 288621667 2020351669