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250143042 = 23270715401
BaseRepresentation
bin11101110100011…
…10000101000010
3122102200120202010
432322032011002
51003014034132
640453233350
76125116002
oct1672160502
9572616663
10250143042
11119221196
126b932856
133ca92846
1425316002
1516e616cc
hexee8e142

250143042 has 16 divisors (see below), whose sum is σ = 500503392. Its totient is φ = 83344800.

The previous prime is 250143031. The next prime is 250143043. The reversal of 250143042 is 240341052.

It is a super-2 number, since 2×2501430422 = 125143082922027528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (250143043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8542 + ... + 23942.

It is an arithmetic number, because the mean of its divisors is an integer number (31281462).

Almost surely, 2250143042 is an apocalyptic number.

250143042 is an abundant number, since it is smaller than the sum of its proper divisors (250360350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250143042 is a wasteful number, since it uses less digits than its factorization.

250143042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18113.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 250143042 is about 15815.9110392035. The cubic root of 250143042 is about 630.0806497910.

Adding to 250143042 its reverse (240341052), we get a palindrome (490484094).

The spelling of 250143042 in words is "two hundred fifty million, one hundred forty-three thousand, forty-two".

Divisors: 1 2 3 6 2707 5414 8121 15401 16242 30802 46203 92406 41690507 83381014 125071521 250143042