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245141 = 13109173
BaseRepresentation
bin111011110110010101
3110110021022
4323312111
530321031
65130525
72040461
oct736625
9413238
10245141
111581a6
12b9a45
1387770
14654a1
154c97b
hex3bd95

245141 has 8 divisors (see below), whose sum is σ = 267960. Its totient is φ = 222912.

The previous prime is 245131. The next prime is 245149. The reversal of 245141 is 141542.

It can be written as a sum of positive squares in 4 ways, for example, as 64516 + 180625 = 254^2 + 425^2 .

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 245141 - 214 = 228757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245149) 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, 1331 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (33495).

2245141 is an apocalyptic number.

It is an amenable number.

245141 is a deficient number, since it is larger than the sum of its proper divisors (22819).

245141 is a wasteful number, since it uses less digits than its factorization.

245141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

The product of its digits is 160, while the sum is 17.

The square root of 245141 is about 495.1171578526. The cubic root of 245141 is about 62.5852490022.

Adding to 245141 its reverse (141542), we get a palindrome (386683).

The spelling of 245141 in words is "two hundred forty-five thousand, one hundred forty-one".

Divisors: 1 13 109 173 1417 2249 18857 245141