Search a number
-
+
245808701 is a prime number
BaseRepresentation
bin11101010011010…
…11111000111101
3122010112101010222
432221223320331
51000411334301
640220311125
76043224305
oct1651537075
9563471128
10245808701
11116830796
126a3a24a5
133bc05a48
1424908605
15168a731b
hexea6be3d

245808701 has 2 divisors, whose sum is σ = 245808702. Its totient is φ = 245808700.

The previous prime is 245808677. The next prime is 245808713. The reversal of 245808701 is 107808542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158105476 + 87703225 = 12574^2 + 9365^2 .

It is a cyclic number.

It is not a de Polignac number, because 245808701 - 214 = 245792317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245808721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122904350 + 122904351.

It is an arithmetic number, because the mean of its divisors is an integer number (122904351).

Almost surely, 2245808701 is an apocalyptic number.

It is an amenable number.

245808701 is a deficient number, since it is larger than the sum of its proper divisors (1).

245808701 is an equidigital number, since it uses as much as digits as its factorization.

245808701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 245808701 is about 15678.2875659302. The cubic root of 245808701 is about 626.4201952816.

The spelling of 245808701 in words is "two hundred forty-five million, eight hundred eight thousand, seven hundred one".