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20140632 = 2332279731
BaseRepresentation
bin100110011010…
…1001001011000
31101220020202100
41030311021120
520124000012
61555403400
7333123021
oct114651130
941806670
1020140632
1110406a56
1268b3560
134232445
142963c48
151b7c8dc
hex1335258

20140632 has 24 divisors (see below), whose sum is σ = 54547740. Its totient is φ = 6713520.

The previous prime is 20140619. The next prime is 20140639. The reversal of 20140632 is 23604102.

It is a happy number.

20140632 is a `hidden beast` number, since 20 + 14 + 0 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139794 + ... + 139937.

Almost surely, 220140632 is an apocalyptic number.

It is an amenable number.

20140632 is an abundant number, since it is smaller than the sum of its proper divisors (34407108).

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

20140632 is a wasteful number, since it uses less digits than its factorization.

20140632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279743 (or 279736 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20140632 is about 4487.8315476408. The cubic root of 20140632 is about 272.0764995322.

Adding to 20140632 its reverse (23604102), we get a palindrome (43744734).

The spelling of 20140632 in words is "twenty million, one hundred forty thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 279731 559462 839193 1118924 1678386 2237848 2517579 3356772 5035158 6713544 10070316 20140632