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245875213 is a prime number
BaseRepresentation
bin11101010011111…
…00001000001101
3122010122202101101
432221330020031
51000421001323
640221543101
76043622233
oct1651741015
9563582341
10245875213
11116876761
126a414a91
133bc2a0bc
1424924953
15168bbdad
hexea7c20d

245875213 has 2 divisors, whose sum is σ = 245875214. Its totient is φ = 245875212.

The previous prime is 245875183. The next prime is 245875261. The reversal of 245875213 is 312578542.

245875213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 6402-nd star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200420649 + 45454564 = 14157^2 + 6742^2 .

It is a cyclic number.

It is not a de Polignac number, because 245875213 - 29 = 245874701 is a prime.

It is equal to p13465990 and since 245875213 and 13465990 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245875013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122937606 + 122937607.

It is an arithmetic number, because the mean of its divisors is an integer number (122937607).

Almost surely, 2245875213 is an apocalyptic number.

It is an amenable number.

245875213 is a deficient number, since it is larger than the sum of its proper divisors (1).

245875213 is an equidigital number, since it uses as much as digits as its factorization.

245875213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 245875213 is about 15680.4085724831. The cubic root of 245875213 is about 626.4766900307.

The spelling of 245875213 in words is "two hundred forty-five million, eight hundred seventy-five thousand, two hundred thirteen".