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355143141 = 32172136541
BaseRepresentation
bin10101001010110…
…000110111100101
3220202021010210200
4111022300313211
51211404040031
655123541113
711541444513
oct2512606745
9822233720
10355143141
11172518331
129ab2a799
1358767192
14352494b3
15212a28e6
hex152b0de5

355143141 has 18 divisors (see below), whose sum is σ = 544939122. Its totient is φ = 222833280.

The previous prime is 355143137. The next prime is 355143179. The reversal of 355143141 is 141341553.

It is a happy number.

355143141 is a `hidden beast` number, since 3 + 5 + 514 + 3 + 141 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 57062916 + 298080225 = 7554^2 + 17265^2 .

It is not a de Polignac number, because 355143141 - 22 = 355143137 is a prime.

It is a super-2 number, since 2×3551431412 = 252253301198691762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355143121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 65670 + ... + 70871.

Almost surely, 2355143141 is an apocalyptic number.

It is an amenable number.

355143141 is a deficient number, since it is larger than the sum of its proper divisors (189795981).

355143141 is a wasteful number, since it uses less digits than its factorization.

355143141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136581 (or 136561 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 355143141 is about 18845.2418663173. The cubic root of 355143141 is about 708.1650302358.

Adding to 355143141 its reverse (141341553), we get a palindrome (496484694).

The spelling of 355143141 in words is "three hundred fifty-five million, one hundred forty-three thousand, one hundred forty-one".

Divisors: 1 3 9 17 51 153 289 867 2601 136541 409623 1228869 2321197 6963591 20890773 39460349 118381047 355143141