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140293192 = 23132389659
BaseRepresentation
bin10000101110010…
…11010001001000
3100202222122002011
420113023101020
5241403340232
621530545304
73322321024
oct1027132110
9322878064
10140293192
1172212396
123ab98234
13230b0930
14148bd384
15c4b3547
hex85cb448

140293192 has 64 divisors (see below), whose sum is σ = 299376000. Its totient is φ = 61146624.

The previous prime is 140293183. The next prime is 140293199. The reversal of 140293192 is 291392041.

It is not an unprimeable number, because it can be changed into a prime (140293199) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 212559 + ... + 213217.

It is an arithmetic number, because the mean of its divisors is an integer number (4677750).

Almost surely, 2140293192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140293192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149688000).

140293192 is an abundant number, since it is smaller than the sum of its proper divisors (159082808).

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

140293192 is a wasteful number, since it uses less digits than its factorization.

140293192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 140293192 is about 11844.5427096195. The cubic root of 140293192 is about 519.6116330936.

The spelling of 140293192 in words is "one hundred forty million, two hundred ninety-three thousand, one hundred ninety-two".

Divisors: 1 2 4 8 13 23 26 46 52 89 92 104 178 184 299 356 598 659 712 1157 1196 1318 2047 2314 2392 2636 4094 4628 5272 8188 8567 9256 15157 16376 17134 26611 30314 34268 53222 58651 60628 68536 106444 117302 121256 197041 212888 234604 394082 469208 762463 788164 1348973 1524926 1576328 2697946 3049852 5395892 6099704 10791784 17536649 35073298 70146596 140293192