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142660353 = 31167113571
BaseRepresentation
bin10001000000011…
…01001100000001
3100221102220012210
420200031030001
5243010112403
622053412333
73351410253
oct1040151401
9327386183
10142660353
1173589920
123b93a0a9
132372c214
1414d37cd3
15c7ceb03
hex880d301

142660353 has 32 divisors (see below), whose sum is σ = 212838912. Its totient is φ = 84268800.

The previous prime is 142660339. The next prime is 142660363. The reversal of 142660353 is 353066241.

It is not a de Polignac number, because 142660353 - 24 = 142660337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142660353.

It is not an unprimeable number, because it can be changed into a prime (142660313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249558 + ... + 250128.

It is an arithmetic number, because the mean of its divisors is an integer number (6651216).

Almost surely, 2142660353 is an apocalyptic number.

It is an amenable number.

142660353 is a deficient number, since it is larger than the sum of its proper divisors (70178559).

142660353 is a wasteful number, since it uses less digits than its factorization.

142660353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 142660353 is about 11944.0509459731. The cubic root of 142660353 is about 522.5178101878.

The spelling of 142660353 in words is "one hundred forty-two million, six hundred sixty thousand, three hundred fifty-three".

Divisors: 1 3 11 33 67 113 201 339 571 737 1243 1713 2211 3729 6281 7571 18843 22713 38257 64523 83281 114771 193569 249843 420827 709753 1262481 2129259 4323041 12969123 47553451 142660353