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20914426 = 2132431439
BaseRepresentation
bin100111111001…
…0000011111010
31110100120012101
41033302003322
520323230201
62024134014
7342525001
oct117620372
943316171
1020914426
1110895355
12700730a
134443700
142ac5c38
151c81d01
hex13f20fa

20914426 has 24 divisors (see below), whose sum is σ = 34784640. Its totient is φ = 9421776.

The previous prime is 20914417. The next prime is 20914433. The reversal of 20914426 is 62441902.

It is a junction number, because it is equal to n+sod(n) for n = 20914394 and 20914403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13815 + ... + 15253.

It is an arithmetic number, because the mean of its divisors is an integer number (1449360).

Almost surely, 220914426 is an apocalyptic number.

20914426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20914426 is a deficient number, since it is larger than the sum of its proper divisors (13870214).

20914426 is a wasteful number, since it uses less digits than its factorization.

20914426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20914426 is about 4573.2292748123. The cubic root of 20914426 is about 275.5171579658.

The spelling of 20914426 in words is "twenty million, nine hundred fourteen thousand, four hundred twenty-six".

Divisors: 1 2 13 26 43 86 169 338 559 1118 1439 2878 7267 14534 18707 37414 61877 123754 243191 486382 804401 1608802 10457213 20914426