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143223042 = 2323870507
BaseRepresentation
bin10001000100101…
…10100100000010
3100222111111002010
420202112210002
5243131114132
622113433350
73356242614
oct1042264402
9328444063
10143223042
1173933656
123bb6b856
1323898381
1415042db4
15c8916cc
hex8896902

143223042 has 8 divisors (see below), whose sum is σ = 286446096. Its totient is φ = 47741012.

The previous prime is 143223037. The next prime is 143223049. The reversal of 143223042 is 240322341.

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

143223042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (143223049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11935248 + ... + 11935259.

It is an arithmetic number, because the mean of its divisors is an integer number (35805762).

Almost surely, 2143223042 is an apocalyptic number.

143223042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

143223042 is a wasteful number, since it uses less digits than its factorization.

143223042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23870512.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143223042 is about 11967.5829639907. The cubic root of 143223042 is about 523.2038903446.

Adding to 143223042 its reverse (240322341), we get a palindrome (383545383).

The spelling of 143223042 in words is "one hundred forty-three million, two hundred twenty-three thousand, forty-two".

Divisors: 1 2 3 6 23870507 47741014 71611521 143223042