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199033680 = 243541113179
BaseRepresentation
bin10111101110100…
…00001101010000
3111212111221212210
423313100031100
5401423034210
631425552120
74634521056
oct1367201520
9455457783
10199033680
11a2392a4a
12567a5640
1332309511
141c6101d6
1512717e20
hexbdd0350

199033680 has 160 divisors (see below), whose sum is σ = 641208960. Its totient is φ = 51036160.

The previous prime is 199033663. The next prime is 199033691. The reversal of 199033680 is 86330991.

It is a super-2 number, since 2×1990336802 = 79228811548684800, which contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1111831 + ... + 1112009.

It is an arithmetic number, because the mean of its divisors is an integer number (4007556).

Almost surely, 2199033680 is an apocalyptic number.

199033680 is a gapful number since it is divisible by the number (10) 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 199033680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320604480).

199033680 is an abundant number, since it is smaller than the sum of its proper divisors (442175280).

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

199033680 is a wasteful number, since it uses less digits than its factorization.

199033680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 199033680 is about 14107.9296851097. The cubic root of 199033680 is about 583.8601810771.

The spelling of 199033680 in words is "one hundred ninety-nine million, thirty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 41 48 60 80 82 113 120 123 164 179 205 226 240 246 328 339 358 410 452 492 537 565 615 656 678 716 820 895 904 984 1074 1130 1230 1356 1432 1640 1695 1790 1808 1968 2148 2260 2460 2685 2712 2864 3280 3390 3580 4296 4520 4633 4920 5370 5424 6780 7160 7339 8592 9040 9266 9840 10740 13560 13899 14320 14678 18532 20227 21480 22017 23165 27120 27798 29356 36695 37064 40454 42960 44034 46330 55596 58712 60681 69495 73390 74128 80908 88068 92660 101135 110085 111192 117424 121362 138990 146780 161816 176136 185320 202270 220170 222384 242724 277980 293560 303405 323632 352272 370640 404540 440340 485448 555960 587120 606810 809080 829307 880680 970896 1111920 1213620 1618160 1658614 1761360 2427240 2487921 3317228 4146535 4854480 4975842 6634456 8293070 9951684 12439605 13268912 16586140 19903368 24879210 33172280 39806736 49758420 66344560 99516840 199033680