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250321417 = 2910138521
BaseRepresentation
bin11101110101110…
…01101000001001
3122110000122102121
432322321220021
51003040241132
640501131241
76126461023
oct1672715011
9573018377
10250321417
11119333205
126b9b9b21
133cb25aa8
1425361013
1516e99497
hexeeb9a09

250321417 has 8 divisors (see below), whose sum is σ = 259239240. Its totient is φ = 241422720.

The previous prime is 250321411. The next prime is 250321429. The reversal of 250321417 is 714123052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 175561 + 250145856 = 419^2 + 15816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-250321417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250321391 and 250321400.

It is not an unprimeable number, because it can be changed into a prime (250321411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25117 + ... + 33637.

It is an arithmetic number, because the mean of its divisors is an integer number (32404905).

Almost surely, 2250321417 is an apocalyptic number.

It is an amenable number.

250321417 is a deficient number, since it is larger than the sum of its proper divisors (8917823).

250321417 is a wasteful number, since it uses less digits than its factorization.

250321417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9563.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 250321417 is about 15821.5491340134. The cubic root of 250321417 is about 630.2303826940.

Adding to 250321417 its reverse (714123052), we get a palindrome (964444469).

The spelling of 250321417 in words is "two hundred fifty million, three hundred twenty-one thousand, four hundred seventeen".

Divisors: 1 29 1013 8521 29377 247109 8631773 250321417