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20063912 = 2311232431
BaseRepresentation
bin100110010001…
…0011010101000
31101202100111212
41030202122220
520114021122
61554012252
7332353241
oct114423250
941670455
1020063912
1110364350
126877088
13420654b
142943cc8
151b64ce2
hex13226a8

20063912 has 48 divisors (see below), whose sum is σ = 43001280. Its totient is φ = 8703200.

The previous prime is 20063909. The next prime is 20063933. The reversal of 20063912 is 21936002.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 46337 + ... + 46767.

It is an arithmetic number, because the mean of its divisors is an integer number (895860).

Almost surely, 220063912 is an apocalyptic number.

20063912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20063912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21500640).

20063912 is an abundant number, since it is smaller than the sum of its proper divisors (22937368).

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

20063912 is a wasteful number, since it uses less digits than its factorization.

20063912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20063912 is about 4479.2758343286. The cubic root of 20063912 is about 271.7305939780.

Adding to 20063912 its reverse (21936002), we get a palindrome (41999914).

The spelling of 20063912 in words is "twenty million, sixty-three thousand, nine hundred twelve".

Divisors: 1 2 4 8 11 22 23 44 46 88 92 184 253 431 506 529 862 1012 1058 1724 2024 2116 3448 4232 4741 5819 9482 9913 11638 18964 19826 23276 37928 39652 46552 79304 109043 218086 227999 436172 455998 872344 911996 1823992 2507989 5015978 10031956 20063912