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2020430451 = 313793491879
BaseRepresentation
bin111100001101101…
…0101001001110011
312012210210111112110
41320123111021303
513114212233301
6532252500403
7101032242534
oct17033251163
95183714473
102020430451
11947531336
1248477a703
1326277b6a0
1415249668b
15bc59b0d6
hex786d5273

2020430451 has 32 divisors (see below), whose sum is σ = 2947840000. Its totient is φ = 1223434368.

The previous prime is 2020430443. The next prime is 2020430453. The reversal of 2020430451 is 1540340202.

It is not a de Polignac number, because 2020430451 - 23 = 2020430443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020430453) 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 31 ways as a sum of consecutive naturals, for example, 1074330 + ... + 1076208.

It is an arithmetic number, because the mean of its divisors is an integer number (92120000).

Almost surely, 22020430451 is an apocalyptic number.

2020430451 is a deficient number, since it is larger than the sum of its proper divisors (927409549).

2020430451 is a wasteful number, since it uses less digits than its factorization.

2020430451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2020430451 is about 44949.1985579276. The cubic root of 2020430451 is about 1264.1966499157.

Adding to 2020430451 its reverse (1540340202), we get a palindrome (3560770653).

The spelling of 2020430451 in words is "two billion, twenty million, four hundred thirty thousand, four hundred fifty-one".

Divisors: 1 3 13 39 79 237 349 1027 1047 1879 3081 4537 5637 13611 24427 27571 73281 82713 148441 358423 445323 655771 1075269 1929733 1967313 5789199 8525023 25575069 51805909 155417727 673476817 2020430451