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250142533 = 379769697
BaseRepresentation
bin11101110100011…
…01111101000101
3122102200120001021
432322031331011
51003014030113
640453231141
76125114344
oct1672157505
9572616037
10250142533
11119220873
126b9324b1
133ca92544
1425315b5b
1516e6148d
hexee8df45

250142533 has 8 divisors (see below), whose sum is σ = 259555352. Its totient is φ = 240869376.

The previous prime is 250142531. The next prime is 250142537. The reversal of 250142533 is 335241052.

It can be written as a sum of positive squares in 4 ways, for example, as 173369889 + 76772644 = 13167^2 + 8762^2 .

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 250142533 - 21 = 250142531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250142498 and 250142507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250142531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31260 + ... + 38437.

It is an arithmetic number, because the mean of its divisors is an integer number (32444419).

Almost surely, 2250142533 is an apocalyptic number.

It is an amenable number.

250142533 is a deficient number, since it is larger than the sum of its proper divisors (9412819).

250142533 is an equidigital number, since it uses as much as digits as its factorization.

250142533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69831.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 250142533 is about 15815.8949478049. The cubic root of 250142533 is about 630.0802224205.

Adding to 250142533 its reverse (335241052), we get a palindrome (585383585).

The spelling of 250142533 in words is "two hundred fifty million, one hundred forty-two thousand, five hundred thirty-three".

Divisors: 1 37 97 3589 69697 2578789 6760609 250142533