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199680480 = 25325236029
BaseRepresentation
bin10111110011011…
…10000111100000
3111220201211010100
423321232013200
5402104233410
631451502400
74643153556
oct1371560740
9456654110
10199680480
11a279499a
1256a57a00
13324a4a3c
141c73bbd6
15127e48c0
hexbe6e1e0

199680480 has 144 divisors (see below), whose sum is σ = 711154080. Its totient is φ = 50924544.

The previous prime is 199680461. The next prime is 199680491. The reversal of 199680480 is 84086991.

199680480 is a `hidden beast` number, since 1 + 9 + 96 + 80 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30106 + ... + 36134.

It is an arithmetic number, because the mean of its divisors is an integer number (4938570).

Almost surely, 2199680480 is an apocalyptic number.

199680480 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 199680480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355577040).

199680480 is an abundant number, since it is smaller than the sum of its proper divisors (511473600).

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

199680480 is a wasteful number, since it uses less digits than its factorization.

199680480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073 (or 6062 counting only the distinct ones).

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

The square root of 199680480 is about 14130.8343702699. The cubic root of 199680480 is about 584.4919542672.

199680480 divided by its sum of digits (45) gives a palindrome (4437344).

The spelling of 199680480 in words is "one hundred ninety-nine million, six hundred eighty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 30 32 36 40 45 46 48 60 69 72 80 90 92 96 115 120 138 144 160 180 184 207 230 240 276 288 345 360 368 414 460 480 552 690 720 736 828 920 1035 1104 1380 1440 1656 1840 2070 2208 2760 3312 3680 4140 5520 6029 6624 8280 11040 12058 16560 18087 24116 30145 33120 36174 48232 54261 60290 72348 90435 96464 108522 120580 138667 144696 180870 192928 217044 241160 271305 277334 289392 361740 416001 434088 482320 542610 554668 578784 693335 723480 832002 868176 964640 1085220 1109336 1248003 1386670 1446960 1664004 1736352 2080005 2170440 2218672 2496006 2773340 2893920 3328008 4160010 4340880 4437344 4992012 5546680 6240015 6656016 8320020 8681760 9984024 11093360 12480030 13312032 16640040 19968048 22186720 24960060 33280080 39936096 49920120 66560160 99840240 199680480