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250342031 = 2281109751
BaseRepresentation
bin11101110101111…
…10101010001111
3122110001200201002
432322332222033
51003041421111
640501410515
76126605102
oct1672765217
9573050632
10250342031
11119347745
126ba09a3b
133cb322a4
1425368739
1516ea063b
hexeebea8f

250342031 has 4 divisors (see below), whose sum is σ = 250454064. Its totient is φ = 250230000.

The previous prime is 250342021. The next prime is 250342067. The reversal of 250342031 is 130243052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-250342031 is a prime.

It is a super-2 number, since 2×2503420312 = 125342264970409922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250341994 and 250342012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250342021) 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 3 ways as a sum of consecutive naturals, for example, 52595 + ... + 57156.

It is an arithmetic number, because the mean of its divisors is an integer number (62613516).

Almost surely, 2250342031 is an apocalyptic number.

250342031 is a deficient number, since it is larger than the sum of its proper divisors (112033).

250342031 is a wasteful number, since it uses less digits than its factorization.

250342031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112032.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 250342031 is about 15822.2005738772. The cubic root of 250342031 is about 630.2476820695.

Adding to 250342031 its reverse (130243052), we get a palindrome (380585083).

The spelling of 250342031 in words is "two hundred fifty million, three hundred forty-two thousand, thirty-one".

Divisors: 1 2281 109751 250342031