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250426357 = 2692813313
BaseRepresentation
bin11101110110100…
…11001111110101
3122110012222101021
432323103033311
51003102120412
640503301141
76130405666
oct1673231765
9573188337
10250426357
111193a5035
126ba4a7b1
133cb6179c
142538b36d
1516eba607
hexeed33f5

250426357 has 8 divisors (see below), whose sum is σ = 252327960. Its totient is φ = 248532480.

The previous prime is 250426349. The next prime is 250426361. The reversal of 250426357 is 753624052.

It can be written as a sum of positive squares in 4 ways, for example, as 51926436 + 198499921 = 7206^2 + 14089^2 .

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 250426357 - 23 = 250426349 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 (250426307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73933 + ... + 77245.

It is an arithmetic number, because the mean of its divisors is an integer number (31540995).

Almost surely, 2250426357 is an apocalyptic number.

It is an amenable number.

250426357 is a deficient number, since it is larger than the sum of its proper divisors (1901603).

250426357 is a wasteful number, since it uses less digits than its factorization.

250426357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 250426357 is about 15824.8651495044. The cubic root of 250426357 is about 630.3184389983.

The spelling of 250426357 in words is "two hundred fifty million, four hundred twenty-six thousand, three hundred fifty-seven".

Divisors: 1 269 281 3313 75589 891197 930953 250426357