Search a number
-
+
19605248 = 281343137
BaseRepresentation
bin100101011001…
…0011100000000
31100220001100022
41022302130000
520004331443
61540113012
7325433105
oct112623400
940801308
1019605248
1110080793
126695768
1340a5850
142864aac
151ac3e68
hex12b2700

19605248 has 72 divisors (see below), whose sum is σ = 43439088. Its totient is φ = 8773632.

The previous prime is 19605241. The next prime is 19605259. The reversal of 19605248 is 84250691.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19605241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143036 + ... + 143172.

Almost surely, 219605248 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 19605248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21719544).

19605248 is an abundant number, since it is smaller than the sum of its proper divisors (23833840).

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

19605248 is a wasteful number, since it uses less digits than its factorization.

19605248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 19605248 is about 4427.7813857507. The cubic root of 19605248 is about 269.6440118692.

The spelling of 19605248 in words is "nineteen million, six hundred five thousand, two hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 32 43 52 64 86 104 128 137 172 208 256 274 344 416 548 559 688 832 1096 1118 1376 1664 1781 2192 2236 2752 3328 3562 4384 4472 5504 5891 7124 8768 8944 11008 11782 14248 17536 17888 23564 28496 35072 35776 47128 56992 71552 76583 94256 113984 143104 153166 188512 227968 306332 377024 455936 612664 754048 1225328 1508096 2450656 4901312 9802624 19605248