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20142030 = 235671401
BaseRepresentation
bin100110011010…
…1011111001110
31101220022200010
41030311133032
520124021110
61555414050
7333130056
oct114653716
941808603
1020142030
1110408007
1268b4326
134232c7c
142964566
151b7d020
hex13357ce

20142030 has 16 divisors (see below), whose sum is σ = 48340944. Its totient is φ = 5371200.

The previous prime is 20142019. The next prime is 20142047. The reversal of 20142030 is 3024102.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20141997 and 20142015.

It is a congruent number.

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, 335671 + ... + 335730.

It is an arithmetic number, because the mean of its divisors is an integer number (3021309).

Almost surely, 220142030 is an apocalyptic number.

20142030 is an abundant number, since it is smaller than the sum of its proper divisors (28198914).

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

20142030 is a wasteful number, since it uses less digits than its factorization.

20142030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671411.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20142030 is about 4487.9872994473. The cubic root of 20142030 is about 272.0827945043.

Adding to 20142030 its reverse (3024102), we get a palindrome (23166132).

The spelling of 20142030 in words is "twenty million, one hundred forty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 671401 1342802 2014203 3357005 4028406 6714010 10071015 20142030