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20411042 = 253192557
BaseRepresentation
bin100110111011…
…1001010100010
31102101222200112
41031313022202
520211123132
62005251322
7335330261
oct115671242
942358615
1020411042
1110581133
126a03b42
1342c8552
1429d45d8
151bd2ab2
hex13772a2

20411042 has 8 divisors (see below), whose sum is σ = 31194396. Its totient is φ = 10012912.

The previous prime is 20411029. The next prime is 20411057. The reversal of 20411042 is 24011402.

It can be written as a sum of positive squares in 2 ways, for example, as 19989841 + 421201 = 4471^2 + 649^2 .

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

It is a super-2 number, since 2×204110422 = 833221271051528, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 96173 + ... + 96384.

Almost surely, 220411042 is an apocalyptic number.

20411042 is a deficient number, since it is larger than the sum of its proper divisors (10783354).

20411042 is a wasteful number, since it uses less digits than its factorization.

20411042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192612.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20411042 is about 4517.8581208356. The cubic root of 20411042 is about 273.2887318989.

Adding to 20411042 its reverse (24011402), we get a palindrome (44422444).

The spelling of 20411042 in words is "twenty million, four hundred eleven thousand, forty-two".

Divisors: 1 2 53 106 192557 385114 10205521 20411042