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20038216 = 2311227707
BaseRepresentation
bin100110001110…
…0001001001000
31101201001021011
41030130021020
520112210331
61553253304
7332215312
oct114341110
941631234
1020038216
1110347010
126864234
1341c7943
1429387b2
151b5c3b1
hex131c248

20038216 has 16 divisors (see below), whose sum is σ = 40987440. Its totient is φ = 9108240.

The previous prime is 20038199. The next prime is 20038231. The reversal of 20038216 is 61283002.

20038216 is nontrivially palindromic in base 3.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 113766 + ... + 113941.

It is an arithmetic number, because the mean of its divisors is an integer number (2561715).

Almost surely, 220038216 is an apocalyptic number.

It is an amenable number.

20038216 is an abundant number, since it is smaller than the sum of its proper divisors (20949224).

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

20038216 is a wasteful number, since it uses less digits than its factorization.

20038216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227724 (or 227720 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20038216 is about 4476.4065945801. The cubic root of 20038216 is about 271.6145419627.

It can be divided in two parts, 200 and 38216, that added together give a 4-th power (38416 = 144).

The spelling of 20038216 in words is "twenty million, thirty-eight thousand, two hundred sixteen".

Divisors: 1 2 4 8 11 22 44 88 227707 455414 910828 1821656 2504777 5009554 10019108 20038216