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250676381 is a prime number
BaseRepresentation
bin11101111000100…
…00010010011101
3122110200200100102
432330100102131
51003133121011
640512510445
76132466634
oct1674202235
9573620312
10250676381
1111955596a
126bb4b425
133cc1b527
142541451b
151701973b
hexef1049d

250676381 has 2 divisors, whose sum is σ = 250676382. Its totient is φ = 250676380.

The previous prime is 250676357. The next prime is 250676431. The reversal of 250676381 is 183676052.

250676381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167702500 + 82973881 = 12950^2 + 9109^2 .

It is a cyclic number.

It is not a de Polignac number, because 250676381 - 26 = 250676317 is a prime.

It is a super-2 number, since 2×2506763812 = 125677295982514322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250676341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125338190 + 125338191.

It is an arithmetic number, because the mean of its divisors is an integer number (125338191).

Almost surely, 2250676381 is an apocalyptic number.

It is an amenable number.

250676381 is a deficient number, since it is larger than the sum of its proper divisors (1).

250676381 is an equidigital number, since it uses as much as digits as its factorization.

250676381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 250676381 is about 15832.7628984963. The cubic root of 250676381 is about 630.5281377978.

It can be divided in two parts, 2506 and 76381, that added together give a palindrome (78887).

The spelling of 250676381 in words is "two hundred fifty million, six hundred seventy-six thousand, three hundred eighty-one".