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245132141 = 376625193
BaseRepresentation
bin11101001110001…
…10101101101101
3122002021000002012
432213012231231
51000223212031
640154011005
76034405652
oct1647065555
9562230065
10245132141
11116409451
126a116a65
133ba29b07
14247adc29
15167c1b2b
hexe9c6b6d

245132141 has 4 divisors (see below), whose sum is σ = 251757372. Its totient is φ = 238506912.

The previous prime is 245132123. The next prime is 245132191. The reversal of 245132141 is 141231542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124791241 + 120340900 = 11171^2 + 10970^2 .

It is a cyclic number.

It is not a de Polignac number, because 245132141 - 214 = 245115757 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 (245132191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3312560 + ... + 3312633.

It is an arithmetic number, because the mean of its divisors is an integer number (62939343).

Almost surely, 2245132141 is an apocalyptic number.

It is an amenable number.

245132141 is a deficient number, since it is larger than the sum of its proper divisors (6625231).

245132141 is an equidigital number, since it uses as much as digits as its factorization.

245132141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625230.

The product of its digits is 960, while the sum is 23.

The square root of 245132141 is about 15656.6963628985. The cubic root of 245132141 is about 625.8449508315.

Adding to 245132141 its reverse (141231542), we get a palindrome (386363683).

The spelling of 245132141 in words is "two hundred forty-five million, one hundred thirty-two thousand, one hundred forty-one".

Divisors: 1 37 6625193 245132141