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20119112 = 2313223647
BaseRepresentation
bin100110010111…
…1111001001000
31101212011020022
41030233321020
520122302422
61555120012
7333003206
oct114577110
941764208
1020119112
11103a1872
1268a3008
134225700
14295a076
151b76342
hex132fe48

20119112 has 48 divisors (see below), whose sum is σ = 42690240. Its totient is φ = 8868288.

The previous prime is 20119097. The next prime is 20119129. The reversal of 20119112 is 21191102.

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 11 ways as a sum of consecutive naturals, for example, 30773 + ... + 31419.

It is an arithmetic number, because the mean of its divisors is an integer number (889380).

Almost surely, 220119112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20119112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21345120).

20119112 is an abundant number, since it is smaller than the sum of its proper divisors (22571128).

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

20119112 is a wasteful number, since it uses less digits than its factorization.

20119112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 20119112 is about 4485.4333124014. The cubic root of 20119112 is about 271.9795616131.

The spelling of 20119112 in words is "twenty million, one hundred nineteen thousand, one hundred twelve".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 169 184 299 338 598 647 676 1196 1294 1352 2392 2588 3887 5176 7774 8411 14881 15548 16822 29762 31096 33644 59524 67288 109343 119048 193453 218686 386906 437372 773812 874744 1547624 2514889 5029778 10059556 20119112