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143441031 = 3241198397
BaseRepresentation
bin10001000110010…
…11110010000111
3100222220120002210
420203023302013
5243210103111
622122234503
73361141266
oct1043136207
9328816083
10143441031
1173a72408
1240055a33
1323943666
141509c5dd
15c8d60a6
hex88cbc87

143441031 has 8 divisors (see below), whose sum is σ = 192049264. Its totient is φ = 95230080.

The previous prime is 143441021. The next prime is 143441063. The reversal of 143441031 is 130144341.

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

It is not a de Polignac number, because 143441031 - 26 = 143440967 is a prime.

It is a super-2 number, since 2×1434410312 = 41150658748685922, 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 = 143440989 and 143441007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143441021) 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, 98476 + ... + 99921.

It is an arithmetic number, because the mean of its divisors is an integer number (24006158).

Almost surely, 2143441031 is an apocalyptic number.

143441031 is a deficient number, since it is larger than the sum of its proper divisors (48608233).

143441031 is a wasteful number, since it uses less digits than its factorization.

143441031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198641.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 143441031 is about 11976.6869792944. The cubic root of 143441031 is about 523.4691988603.

Adding to 143441031 its reverse (130144341), we get a palindrome (273585372).

The spelling of 143441031 in words is "one hundred forty-three million, four hundred forty-one thousand, thirty-one".

Divisors: 1 3 241 723 198397 595191 47813677 143441031