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20914042 = 221794799
BaseRepresentation
bin100111111000…
…1111101111010
31110100112200011
41033301331322
520323222132
62024132134
7342523612
oct117617572
943315604
1020914042
1110895036
12700704a
134443496
142ac5a42
151c81b47
hex13f1f7a

20914042 has 8 divisors (see below), whose sum is σ = 31392000. Its totient is φ = 10450044.

The previous prime is 20914027. The next prime is 20914043. The reversal of 20914042 is 24041902.

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

It is not an unprimeable number, because it can be changed into a prime (20914043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959 + ... + 6757.

It is an arithmetic number, because the mean of its divisors is an integer number (3924000).

Almost surely, 220914042 is an apocalyptic number.

20914042 is a deficient number, since it is larger than the sum of its proper divisors (10477958).

20914042 is a wasteful number, since it uses less digits than its factorization.

20914042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20914042 is about 4573.1872911570. The cubic root of 20914042 is about 275.5154717415.

Adding to 20914042 its reverse (24041902), we get a palindrome (44955944).

The spelling of 20914042 in words is "twenty million, nine hundred fourteen thousand, forty-two".

Divisors: 1 2 2179 4358 4799 9598 10457021 20914042