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143242021213 = 473897834711
BaseRepresentation
bin1000010101100111100…
…0111100100101011101
3111200201210010121202221
42011121320330211131
54321324424134323
6145445433345341
713230446043124
oct2053170744535
9450653117687
10143242021213
1155826428715
1223917568251
131067a454345
146d0c034abb
153ad567055d
hex2159e3c95d

143242021213 has 8 divisors (see below), whose sum is σ = 146665808640. Its totient is φ = 139833904080.

The previous prime is 143242021163. The next prime is 143242021217. The reversal of 143242021213 is 312120242341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143242021213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143242021217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899073 + ... + 3935638.

It is an arithmetic number, because the mean of its divisors is an integer number (18333226080).

Almost surely, 2143242021213 is an apocalyptic number.

It is an amenable number.

143242021213 is a deficient number, since it is larger than the sum of its proper divisors (3423787427).

143242021213 is an equidigital number, since it uses as much as digits as its factorization.

143242021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835147.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 143242021213 its reverse (312120242341), we get a palindrome (455362263554).

The spelling of 143242021213 in words is "one hundred forty-three billion, two hundred forty-two million, twenty-one thousand, two hundred thirteen".

Divisors: 1 47 389 18283 7834711 368231417 3047702579 143242021213