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20359141 = 111850831
BaseRepresentation
bin100110110101…
…0011111100101
31102022100111021
41031222133211
520202443031
62004211141
7335023045
oct115523745
942270437
1020359141
1110546140
126999ab1
1342aaa3a
1429bd725
151bc2511
hex136a7e5

20359141 has 4 divisors (see below), whose sum is σ = 22209984. Its totient is φ = 18508300.

The previous prime is 20359133. The next prime is 20359187. The reversal of 20359141 is 14195302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20359141 - 23 = 20359133 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 (20359121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925405 + ... + 925426.

It is an arithmetic number, because the mean of its divisors is an integer number (5552496).

Almost surely, 220359141 is an apocalyptic number.

It is an amenable number.

20359141 is a deficient number, since it is larger than the sum of its proper divisors (1850843).

20359141 is a wasteful number, since it uses less digits than its factorization.

20359141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850842.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20359141 is about 4512.1104818034. The cubic root of 20359141 is about 273.0568966377.

The spelling of 20359141 in words is "twenty million, three hundred fifty-nine thousand, one hundred forty-one".

Divisors: 1 11 1850831 20359141