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118561968 = 2434721867
BaseRepresentation
bin1110001000100…
…01110010110000
322021002120110000
413010101302300
5220322440333
615433110000
72636521500
oct704216260
9267076400
10118561968
1160a1a3a8
1233858300
131b742515
1411a63a00
15a61e713
hex7111cb0

118561968 has 150 divisors (see below), whose sum is σ = 399391476. Its totient is φ = 33856704.

The previous prime is 118561939. The next prime is 118561991. The reversal of 118561968 is 869165811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 62571 + ... + 64437.

Almost surely, 2118561968 is an apocalyptic number.

118561968 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 118561968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199695738).

118561968 is an abundant number, since it is smaller than the sum of its proper divisors (280829508).

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

118561968 is a wasteful number, since it uses less digits than its factorization.

118561968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1879 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 118561968 is about 10888.6164410360. The cubic root of 118561968 is about 491.2642184568.

It can be divided in two parts, 11856 and 1968, that added together give a cube (13824 = 243).

The spelling of 118561968 in words is "one hundred eighteen million, five hundred sixty-one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 49 54 56 63 72 81 84 98 108 112 126 144 147 162 168 189 196 216 252 294 324 336 378 392 432 441 504 567 588 648 756 784 882 1008 1134 1176 1296 1323 1512 1764 1867 2268 2352 2646 3024 3528 3734 3969 4536 5292 5601 7056 7468 7938 9072 10584 11202 13069 14936 15876 16803 21168 22404 26138 29872 31752 33606 39207 44808 50409 52276 63504 67212 78414 89616 91483 100818 104552 117621 134424 151227 156828 182966 201636 209104 235242 268848 274449 302454 313656 352863 365932 403272 470484 548898 604908 627312 705726 731864 806544 823347 940968 1058589 1097796 1209816 1411452 1463728 1646694 1881936 2117178 2195592 2419632 2470041 2822904 3293388 4234356 4391184 4940082 5645808 6586776 7410123 8468712 9880164 13173552 14820246 16937424 19760328 29640492 39520656 59280984 118561968