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20162682 = 23613829
BaseRepresentation
bin100110011101…
…0100001111010
31101221101000000
41030322201322
520130201212
62000053430
7333244221
oct114724172
941841000
1020162682
1110421581
126904276
13423c4a7
14296bcb8
151b841dc
hex133a87a

20162682 has 28 divisors (see below), whose sum is σ = 45348570. Its totient is φ = 6720408.

The previous prime is 20162641. The next prime is 20162717. The reversal of 20162682 is 28626102.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 793881 = 4401^2 + 891^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5457 + ... + 8372.

Almost surely, 220162682 is an apocalyptic number.

20162682 is an abundant number, since it is smaller than the sum of its proper divisors (25185888).

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

20162682 is an equidigital number, since it uses as much as digits as its factorization.

20162682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13849 (or 13834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20162682 is about 4490.2875186340. The cubic root of 20162682 is about 272.1757532664.

Adding to 20162682 its reverse (28626102), we get a palindrome (48788784).

The spelling of 20162682 in words is "twenty million, one hundred sixty-two thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 729 1458 13829 27658 41487 82974 124461 248922 373383 746766 1120149 2240298 3360447 6720894 10081341 20162682