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199381248 = 2832117867
BaseRepresentation
bin10111110001001…
…01000100000000
3111220011121122200
423320211010000
5402020144443
631441233200
74640466303
oct1370450400
9456147580
10199381248
11a26000a0
1256932800
13323cb791
141c6a0b3a
1512785dd3
hexbe25100

199381248 has 108 divisors (see below), whose sum is σ = 627205488. Its totient is φ = 60410880.

The previous prime is 199381241. The next prime is 199381249. The reversal of 199381248 is 842183991.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (199381241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21411 + ... + 29277.

Almost surely, 2199381248 is an apocalyptic number.

199381248 is a gapful number since it is divisible by the number (18) 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 199381248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313602744).

199381248 is an abundant number, since it is smaller than the sum of its proper divisors (427824240).

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

199381248 is a wasteful number, since it uses less digits than its factorization.

199381248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900 (or 7883 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 199381248 is about 14120.2424908356. The cubic root of 199381248 is about 584.1998440347.

The spelling of 199381248 in words is "one hundred ninety-nine million, three hundred eighty-one thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 256 264 288 352 384 396 528 576 704 768 792 1056 1152 1408 1584 2112 2304 2816 3168 4224 6336 7867 8448 12672 15734 23601 25344 31468 47202 62936 70803 86537 94404 125872 141606 173074 188808 251744 259611 283212 346148 377616 503488 519222 566424 692296 755232 778833 1006976 1038444 1132848 1384592 1510464 1557666 2013952 2076888 2265696 2769184 3020928 3115332 4153776 4531392 5538368 6041856 6230664 8307552 9062784 11076736 12461328 16615104 18125568 22153472 24922656 33230208 49845312 66460416 99690624 199381248