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20112053 = 133741813
BaseRepresentation
bin100110010111…
…0001010110101
31101211210112212
41030232022311
520122041203
61555023205
7332643503
oct114561265
941753485
1020112053
1110397535
12689ab05
134222430
142957673
151b741d8
hex132e2b5

20112053 has 8 divisors (see below), whose sum is σ = 22245048. Its totient is φ = 18062784.

The previous prime is 20112031. The next prime is 20112061. The reversal of 20112053 is 35021102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 813604 + 19298449 = 902^2 + 4393^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20112053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112023) by changing a digit.

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, 20426 + ... + 21387.

It is an arithmetic number, because the mean of its divisors is an integer number (2780631).

Almost surely, 220112053 is an apocalyptic number.

It is an amenable number.

20112053 is a deficient number, since it is larger than the sum of its proper divisors (2132995).

20112053 is a wasteful number, since it uses less digits than its factorization.

20112053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41863.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20112053 is about 4484.6463628697. The cubic root of 20112053 is about 271.9477489382.

Adding to 20112053 its reverse (35021102), we get a palindrome (55133155).

The spelling of 20112053 in words is "twenty million, one hundred twelve thousand, fifty-three".

Divisors: 1 13 37 481 41813 543569 1547081 20112053