Search a number
-
+
140081960 = 23523433541
BaseRepresentation
bin10000101100101…
…11101100101000
3100202120220022202
420112113230220
5241330110320
621522235332
73320451134
oct1026275450
9322526282
10140081960
1172088717
123aab5b48
1323038745
14148663c4
15c470b75
hex8597b28

140081960 has 64 divisors (see below), whose sum is σ = 336631680. Its totient is φ = 52335360.

The previous prime is 140081959. The next prime is 140081971. The reversal of 140081960 is 69180041.

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 15 ways as a sum of consecutive naturals, for example, 37790 + ... + 41330.

It is an arithmetic number, because the mean of its divisors is an integer number (5259870).

Almost surely, 2140081960 is an apocalyptic number.

140081960 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 140081960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168315840).

140081960 is an abundant number, since it is smaller than the sum of its proper divisors (196549720).

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

140081960 is a wasteful number, since it uses less digits than its factorization.

140081960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 140081960 is about 11835.6225015839. The cubic root of 140081960 is about 519.3507182316.

The spelling of 140081960 in words is "one hundred forty million, eighty-one thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 23 40 43 46 86 92 115 172 184 215 230 344 430 460 860 920 989 1720 1978 3541 3956 4945 7082 7912 9890 14164 17705 19780 28328 35410 39560 70820 81443 141640 152263 162886 304526 325772 407215 609052 651544 761315 814430 1218104 1522630 1628860 3045260 3257720 3502049 6090520 7004098 14008196 17510245 28016392 35020490 70040980 140081960