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243052141 = 4142114081
BaseRepresentation
bin11100111110010…
…10111001101101
3121221100022212011
432133022321231
5444210132031
640041241221
76010623553
oct1637127155
9557308764
10243052141
11115218742
1269493211
133b47c147
14243cbbd3
15165106b1
hexe7cae6d

243052141 has 8 divisors (see below), whose sum is σ = 249589368. Its totient is φ = 236544000.

The previous prime is 243052133. The next prime is 243052153. The reversal of 243052141 is 141250342.

It can be written as a sum of positive squares in 4 ways, for example, as 1094116 + 241958025 = 1046^2 + 15555^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243052141 - 23 = 243052133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243052841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10221 + ... + 24301.

It is an arithmetic number, because the mean of its divisors is an integer number (31198671).

Almost surely, 2243052141 is an apocalyptic number.

It is an amenable number.

243052141 is a deficient number, since it is larger than the sum of its proper divisors (6537227).

243052141 is a wasteful number, since it uses less digits than its factorization.

243052141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14543.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 243052141 is about 15590.1296017705. The cubic root of 243052141 is about 624.0697765017.

The spelling of 243052141 in words is "two hundred forty-three million, fifty-two thousand, one hundred forty-one".

Divisors: 1 41 421 14081 17261 577321 5928101 243052141