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20514133 = 113379479
BaseRepresentation
bin100111001000…
…0010101010101
31102121020002201
41032100111111
520222423013
62011404501
7336236653
oct116202525
942536081
1020514133
1110641632
126a53731
134333453
142a1ddd3
151c033dd
hex1390555

20514133 has 8 divisors (see below), whose sum is σ = 20793600. Its totient is φ = 20236608.

The previous prime is 20514103. The next prime is 20514149. The reversal of 20514133 is 33141502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20514133 - 29 = 20513621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20514133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514103) 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 7 ways as a sum of consecutive naturals, for example, 42588 + ... + 43066.

It is an arithmetic number, because the mean of its divisors is an integer number (2599200).

Almost surely, 220514133 is an apocalyptic number.

It is an amenable number.

20514133 is a deficient number, since it is larger than the sum of its proper divisors (279467).

20514133 is a wasteful number, since it uses less digits than its factorization.

20514133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20514133 is about 4529.2530289221. The cubic root of 20514133 is about 273.7480634823.

Adding to 20514133 its reverse (33141502), we get a palindrome (53655635).

The spelling of 20514133 in words is "twenty million, five hundred fourteen thousand, one hundred thirty-three".

Divisors: 1 113 379 479 42827 54127 181541 20514133