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19152228 = 22319167503
BaseRepresentation
bin100100100001…
…1110101100100
31100001000220210
41021003311210
514400332403
61522255420
7321535254
oct111036544
940030823
1019152228
11a8a1397
1264b7570
133c775a4
142787964
151a34b03
hex1243d64

19152228 has 48 divisors (see below), whose sum is σ = 47416320. Its totient is φ = 5999904.

The previous prime is 19152227. The next prime is 19152229. The reversal of 19152228 is 82225191.

It is an interprime number because it is at equal distance from previous prime (19152227) and next prime (19152229).

It is a junction number, because it is equal to n+sod(n) for n = 19152195 and 19152204.

It is not an unprimeable number, because it can be changed into a prime (19152223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37825 + ... + 38327.

It is an arithmetic number, because the mean of its divisors is an integer number (987840).

Almost surely, 219152228 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 19152228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23708160).

19152228 is an abundant number, since it is smaller than the sum of its proper divisors (28264092).

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

19152228 is a wasteful number, since it uses less digits than its factorization.

19152228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 694 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 19152228 is about 4376.3258562406. The cubic root of 19152228 is about 267.5509112054.

The spelling of 19152228 in words is "nineteen million, one hundred fifty-two thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 167 228 334 501 503 668 1002 1006 1509 2004 2012 3018 3173 6036 6346 9519 9557 12692 19038 19114 28671 38076 38228 57342 84001 114684 168002 252003 336004 504006 1008012 1596019 3192038 4788057 6384076 9576114 19152228