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20302352 = 2471710663
BaseRepresentation
bin100110101110…
…0101000010000
31102012110120222
41031130220100
520144133402
62003052212
7334365350
oct115345020
942173528
1020302352
1110507504
126971068
13428ac35
1429a6b60
151bb07a2
hex135ca10

20302352 has 40 divisors (see below), whose sum is σ = 47604096. Its totient is φ = 8188416.

The previous prime is 20302327. The next prime is 20302361. The reversal of 20302352 is 25320302.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20302352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3428 + ... + 7235.

Almost surely, 220302352 is an apocalyptic number.

It is an amenable number.

20302352 is an abundant number, since it is smaller than the sum of its proper divisors (27301744).

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

20302352 is a wasteful number, since it uses less digits than its factorization.

20302352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695 (or 10689 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 20302352 is about 4505.8131341635. The cubic root of 20302352 is about 272.8027754324.

Adding to 20302352 its reverse (25320302), we get a palindrome (45622654).

The spelling of 20302352 in words is "twenty million, three hundred two thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 10663 21326 42652 74641 85304 149282 170608 181271 298564 362542 597128 725084 1194256 1268897 1450168 2537794 2900336 5075588 10151176 20302352