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20704074 = 233450679
BaseRepresentation
bin100111011111…
…0101101001010
31102221212122120
41032332231022
520300012244
62015432110
7340660506
oct116765512
942855576
1020704074
1110761306
126b25636
13439ba41
142a6d306
151c3e819
hex13beb4a

20704074 has 8 divisors (see below), whose sum is σ = 41408160. Its totient is φ = 6901356.

The previous prime is 20704043. The next prime is 20704081. The reversal of 20704074 is 47040702.

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

20704074 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725334 + ... + 1725345.

It is an arithmetic number, because the mean of its divisors is an integer number (5176020).

Almost surely, 220704074 is an apocalyptic number.

20704074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20704074 is a wasteful number, since it uses less digits than its factorization.

20704074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450684.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 20704074 is about 4550.1729637454. The cubic root of 20704074 is about 274.5903498526.

Adding to 20704074 its reverse (47040702), we get a palindrome (67744776).

The spelling of 20704074 in words is "twenty million, seven hundred four thousand, seventy-four".

Divisors: 1 2 3 6 3450679 6901358 10352037 20704074