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20242353 = 319218691
BaseRepresentation
bin100110100110…
…1111110110001
31102002102021210
41031031332301
520140223403
62001510333
7334025415
oct115157661
942072253
1020242353
111047641a
1269423a9
134269831
14298cd45
151b9cb03
hex134dfb1

20242353 has 12 divisors (see below), whose sum is σ = 28486608. Its totient is φ = 12783960.

The previous prime is 20242351. The next prime is 20242363. The reversal of 20242353 is 35324202.

It is not a de Polignac number, because 20242353 - 21 = 20242351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20242351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8263 + ... + 10428.

It is an arithmetic number, because the mean of its divisors is an integer number (2373884).

Almost surely, 220242353 is an apocalyptic number.

It is an amenable number.

20242353 is a deficient number, since it is larger than the sum of its proper divisors (8244255).

20242353 is a wasteful number, since it uses less digits than its factorization.

20242353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18732 (or 18713 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20242353 is about 4499.1502531034. The cubic root of 20242353 is about 272.5337746763.

Adding to 20242353 its reverse (35324202), we get a palindrome (55566555).

The spelling of 20242353 in words is "twenty million, two hundred forty-two thousand, three hundred fifty-three".

Divisors: 1 3 19 57 361 1083 18691 56073 355129 1065387 6747451 20242353