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140176680 = 23357198783
BaseRepresentation
bin10000101101011…
…10110100101000
3100202202201020220
420112232310220
5241341123210
621524250040
73321324240
oct1026566450
9322681226
10140176680
11721428a6
123ab40920
132306c8a7
141488cb20
15c48dc70
hex85aed28

140176680 has 128 divisors (see below), whose sum is σ = 505958400. Its totient is φ = 30350592.

The previous prime is 140176669. The next prime is 140176693. The reversal of 140176680 is 86671041.

It is a happy 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, 11569 + ... + 20351.

It is an arithmetic number, because the mean of its divisors is an integer number (3952800).

Almost surely, 2140176680 is an apocalyptic number.

140176680 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 140176680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252979200).

140176680 is an abundant number, since it is smaller than the sum of its proper divisors (365781720).

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

140176680 is a wasteful number, since it uses less digits than its factorization.

140176680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8823 (or 8819 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 140176680 is about 11839.6233048184. The cubic root of 140176680 is about 519.4677492814.

The spelling of 140176680 in words is "one hundred forty million, one hundred seventy-six thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 19 20 21 24 28 30 35 38 40 42 56 57 60 70 76 84 95 105 114 120 133 140 152 168 190 210 228 266 280 285 380 399 420 456 532 570 665 760 798 840 1064 1140 1330 1596 1995 2280 2660 3192 3990 5320 7980 8783 15960 17566 26349 35132 43915 52698 61481 70264 87830 105396 122962 131745 166877 175660 184443 210792 245924 263490 307405 333754 351320 368886 491848 500631 526980 614810 667508 737772 834385 922215 1001262 1053960 1168139 1229620 1335016 1475544 1668770 1844430 2002524 2336278 2459240 2503155 3337540 3504417 3688860 4005048 4672556 5006310 5840695 6675080 7008834 7377720 9345112 10012620 11681390 14017668 17522085 20025240 23362780 28035336 35044170 46725560 70088340 140176680