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143041030021 = 1271126307323
BaseRepresentation
bin1000010100110111101…
…0001110011110000101
3111200012202221012200201
42011031322032132011
54320422000430041
6145413453410501
713222455460021
oct2051572163605
9450182835621
10143041030021
1155732a28a9a
1223880199a31
1310647910b46
146ccd475381
153ac2bbc631
hex214de8e785

143041030021 has 4 divisors (see below), whose sum is σ = 144167337472. Its totient is φ = 141914722572.

The previous prime is 143041030001. The next prime is 143041030031. The reversal of 143041030021 is 120030140341.

143041030021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120030140341 = 313871940011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143041030021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143041030001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563153535 + ... + 563153788.

It is an arithmetic number, because the mean of its divisors is an integer number (36041834368).

Almost surely, 2143041030021 is an apocalyptic number.

It is an amenable number.

143041030021 is a deficient number, since it is larger than the sum of its proper divisors (1126307451).

143041030021 is a wasteful number, since it uses less digits than its factorization.

143041030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126307450.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 143041030021 its reverse (120030140341), we get a palindrome (263071170362).

The spelling of 143041030021 in words is "one hundred forty-three billion, forty-one million, thirty thousand, twenty-one".

Divisors: 1 127 1126307323 143041030021