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19480244 = 2272195231
BaseRepresentation
bin100101001001…
…1111010110100
31100122200212112
41022103322310
514441331434
61533310152
7324402500
oct112237264
940580775
1019480244
11aaa5883
126635358
134060994
142831300
151a9bdce
hex1293eb4

19480244 has 36 divisors (see below), whose sum is σ = 41751360. Its totient is φ = 7907760.

The previous prime is 19480243. The next prime is 19480259. The reversal of 19480244 is 44208491.

19480244 = T207 + T208 + ... + T500.

It is a self number, because there is not a number n which added to its sum of digits gives 19480244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19480243) by changing a digit.

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, 1109 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (1159760).

Almost surely, 219480244 is an apocalyptic number.

19480244 is a gapful number since it is divisible by the number (14) 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 19480244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20875680).

19480244 is an abundant number, since it is smaller than the sum of its proper divisors (22271116).

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

19480244 is a wasteful number, since it uses less digits than its factorization.

19480244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268 (or 5259 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 19480244 is about 4413.6429397947. The cubic root of 19480244 is about 269.0697018144.

The spelling of 19480244 in words is "nineteen million, four hundred eighty thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 5231 10462 20924 36617 73234 99389 146468 198778 256319 397556 512638 695723 1025276 1391446 2782892 4870061 9740122 19480244