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118221040 = 24571941271
BaseRepresentation
bin1110000101111…
…10100011110000
322020110020210001
413002332203300
5220231033130
615421515344
72633601520
oct702764360
9266406701
10118221040
1160807243
1233712b54
131b6532a2
14119b5680
15a5a36ca
hex70be8f0

118221040 has 160 divisors (see below), whose sum is σ = 339978240. Its totient is φ = 37324800.

The previous prime is 118221013. The next prime is 118221053. The reversal of 118221040 is 40122811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 118220999 and 118221017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436105 + ... + 436375.

It is an arithmetic number, because the mean of its divisors is an integer number (2124864).

Almost surely, 2118221040 is an apocalyptic number.

118221040 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 118221040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169989120).

118221040 is an abundant number, since it is smaller than the sum of its proper divisors (221757200).

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

118221040 is a wasteful number, since it uses less digits than its factorization.

118221040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 118221040 is about 10872.9499217094. The cubic root of 118221040 is about 490.7928854098.

Adding to 118221040 its reverse (40122811), we get a palindrome (158343851).

It can be divided in two parts, 1182 and 21040, that added together give a palindrome (22222).

The spelling of 118221040 in words is "one hundred eighteen million, two hundred twenty-one thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 35 38 40 41 56 70 76 80 82 95 112 133 140 152 164 190 205 266 271 280 287 304 328 380 410 532 542 560 574 656 665 760 779 820 1064 1084 1148 1330 1355 1435 1520 1558 1640 1897 2128 2168 2296 2660 2710 2870 3116 3280 3794 3895 4336 4592 5149 5320 5420 5453 5740 6232 7588 7790 9485 10298 10640 10840 10906 11111 11480 12464 15176 15580 18970 20596 21680 21812 22222 22960 25745 27265 30352 31160 36043 37940 41192 43624 44444 51490 54530 55555 62320 72086 75880 77777 82384 87248 88888 102980 109060 111110 144172 151760 155554 177776 180215 205960 211109 218120 222220 288344 311108 360430 388885 411920 422218 436240 444440 576688 622216 720860 777770 844436 888880 1055545 1244432 1441720 1477763 1555540 1688872 2111090 2883440 2955526 3111080 3377744 4222180 5911052 6222160 7388815 8444360 11822104 14777630 16888720 23644208 29555260 59110520 118221040