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250342047 = 32155317911
BaseRepresentation
bin11101110101111…
…10101010011111
3122110001200201200
432322332222133
51003041421142
640501410543
76126605124
oct1672765237
9573050650
10250342047
1111934775a
126ba09a53
133cb322b7
142536874b
1516ea064c
hexeebea9f

250342047 has 12 divisors (see below), whose sum is σ = 361858224. Its totient is φ = 166777920.

The previous prime is 250342021. The next prime is 250342067. The reversal of 250342047 is 740243052.

It is not a de Polignac number, because 250342047 - 210 = 250341023 is a prime.

It is a super-2 number, since 2×2503420472 = 125342280992300418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250342047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250342067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5022 + ... + 22932.

It is an arithmetic number, because the mean of its divisors is an integer number (30154852).

Almost surely, 2250342047 is an apocalyptic number.

250342047 is a deficient number, since it is larger than the sum of its proper divisors (111516177).

250342047 is a wasteful number, since it uses less digits than its factorization.

250342047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470 (or 19467 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 250342047 is about 15822.2010794959. The cubic root of 250342047 is about 630.2476954964.

Adding to 250342047 its reverse (740243052), we get a palindrome (990585099).

The spelling of 250342047 in words is "two hundred fifty million, three hundred forty-two thousand, forty-seven".

Divisors: 1 3 9 1553 4659 13977 17911 53733 161199 27815783 83447349 250342047