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20411046 = 2321133947
BaseRepresentation
bin100110111011…
…1001010100110
31102101222200200
41031313022212
520211123141
62005251330
7335330265
oct115671246
942358620
1020411046
1110581137
126a03b46
1342c8556
1429d45dc
151bd2ab6
hex13772a6

20411046 has 12 divisors (see below), whose sum is σ = 44223972. Its totient is φ = 6803676.

The previous prime is 20411029. The next prime is 20411057. The reversal of 20411046 is 64011402.

It is a super-2 number, since 2×204110462 = 833221597628232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1133947 = 20411046 / (2 + 0 + 4 + 1 + 1 + 0 + 4 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566956 + ... + 566991.

It is an arithmetic number, because the mean of its divisors is an integer number (3685331).

Almost surely, 220411046 is an apocalyptic number.

20411046 is an abundant number, since it is smaller than the sum of its proper divisors (23812926).

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

20411046 is a wasteful number, since it uses less digits than its factorization.

20411046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133955 (or 1133952 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20411046 is about 4517.8585635232. The cubic root of 20411046 is about 273.2887497513.

Adding to 20411046 its reverse (64011402), we get a palindrome (84422448).

The spelling of 20411046 in words is "twenty million, four hundred eleven thousand, forty-six".

Divisors: 1 2 3 6 9 18 1133947 2267894 3401841 6803682 10205523 20411046