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20634848 = 251349603
BaseRepresentation
bin100111010110…
…1110011100000
31102211100200122
41032231303200
520240303343
62014135412
7340251623
oct116556340
942740618
1020634848
11107142a3
126ab1568
134376390
142a51dba
151c29068
hex13adce0

20634848 has 24 divisors (see below), whose sum is σ = 43750728. Its totient is φ = 9523584.

The previous prime is 20634799. The next prime is 20634851. The reversal of 20634848 is 84843602.

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 3 ways as a sum of consecutive naturals, for example, 24386 + ... + 25217.

It is an arithmetic number, because the mean of its divisors is an integer number (1822947).

Almost surely, 220634848 is an apocalyptic number.

It is an amenable number.

20634848 is an abundant number, since it is smaller than the sum of its proper divisors (23115880).

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

20634848 is a wasteful number, since it uses less digits than its factorization.

20634848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49626 (or 49618 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 20634848 is about 4542.5596308689. The cubic root of 20634848 is about 274.2839686562.

The spelling of 20634848 in words is "twenty million, six hundred thirty-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 49603 99206 198412 396824 644839 793648 1289678 1587296 2579356 5158712 10317424 20634848