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20416326 = 237486103
BaseRepresentation
bin100110111100…
…0011101000110
31102102020221020
41031320131012
520211310301
62005332010
7335351550
oct115703506
942366836
1020416326
11105850a7
126a07006
1342caa88
1429d64d0
151bd4436
hex1378746

20416326 has 16 divisors (see below), whose sum is σ = 46665984. Its totient is φ = 5833224.

The previous prime is 20416313. The next prime is 20416339. The reversal of 20416326 is 62361402.

It is an interprime number because it is at equal distance from previous prime (20416313) and next prime (20416339).

It is a junction number, because it is equal to n+sod(n) for n = 20416296 and 20416305.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 243010 + ... + 243093.

It is an arithmetic number, because the mean of its divisors is an integer number (2916624).

Almost surely, 220416326 is an apocalyptic number.

20416326 is an abundant number, since it is smaller than the sum of its proper divisors (26249658).

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

20416326 is a wasteful number, since it uses less digits than its factorization.

20416326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486115.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20416326 is about 4518.4428733802. The cubic root of 20416326 is about 273.3123128127.

Adding to 20416326 its reverse (62361402), we get a palindrome (82777728).

The spelling of 20416326 in words is "twenty million, four hundred sixteen thousand, three hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 486103 972206 1458309 2916618 3402721 6805442 10208163 20416326