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20414042142 = 2313261718489
BaseRepresentation
bin10011000000110001…
…011001000000011110
31221200200121210021220
4103000301121000132
5313301443322032
613213355434210
71321610331564
oct230061310036
957620553256
1020414042142
11872621600a
123b58755966
131c043c48a0
14db92a3a34
157e72a512c
hex4c0c5901e

20414042142 has 16 divisors (see below), whose sum is σ = 43968706320. Its totient is φ = 6281243712.

The previous prime is 20414042059. The next prime is 20414042161. The reversal of 20414042142 is 24124041402.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 130859167 + ... + 130859322.

It is an arithmetic number, because the mean of its divisors is an integer number (2748044145).

Almost surely, 220414042142 is an apocalyptic number.

20414042142 is an abundant number, since it is smaller than the sum of its proper divisors (23554664178).

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

20414042142 is a wasteful number, since it uses less digits than its factorization.

20414042142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261718507.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20414042142 its reverse (24124041402), we get a palindrome (44538083544).

The spelling of 20414042142 in words is "twenty billion, four hundred fourteen million, forty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 261718489 523436978 785155467 1570310934 3402340357 6804680714 10207021071 20414042142