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144290831 is a prime number
BaseRepresentation
bin10001001100110…
…11010000001111
3101001111201210212
420212123100033
5243414301311
622152353035
73401310656
oct1046332017
9331451725
10144290831
11744a2923
12403a577b
1323b803b9
141524019d
15ca02c8b
hex899b40f

144290831 has 2 divisors, whose sum is σ = 144290832. Its totient is φ = 144290830.

The previous prime is 144290801. The next prime is 144290837. The reversal of 144290831 is 138092441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144290831 - 210 = 144289807 is a prime.

It is a super-2 number, since 2×1442908312 = 41639687821341122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144290837) 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 as a sum of consecutive naturals, namely, 72145415 + 72145416.

It is an arithmetic number, because the mean of its divisors is an integer number (72145416).

Almost surely, 2144290831 is an apocalyptic number.

144290831 is a deficient number, since it is larger than the sum of its proper divisors (1).

144290831 is an equidigital number, since it uses as much as digits as its factorization.

144290831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 144290831 is about 12012.1118459661. Note that the first 3 decimals coincide. The cubic root of 144290831 is about 524.5009086066.

The spelling of 144290831 in words is "one hundred forty-four million, two hundred ninety thousand, eight hundred thirty-one".