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52143055031021 = 83628229578687
BaseRepresentation
bin10111101101100100000000…
…10001011100101011101101
320211121211100011021122120012
423312302000101130223231
523313302434041443041
6302522104440103005
713661132340551363
oct1366620021345355
9224554304248505
1052143055031021
1115683822220039
125a2180b764a65
1323130b875aba6
14cc3a47335633
15606561b733eb
hex2f6c8045caed

52143055031021 has 4 divisors (see below), whose sum is σ = 52771284609792. Its totient is φ = 51514825452252.

The previous prime is 52143055030993. The next prime is 52143055031047. The reversal of 52143055031021 is 12013055034125.

52143055031021 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.

It is a cyclic number.

It is not a de Polignac number, because 52143055031021 - 238 = 51868177124077 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 (52143055031051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314114789261 + ... + 314114789426.

It is an arithmetic number, because the mean of its divisors is an integer number (13192821152448).

Almost surely, 252143055031021 is an apocalyptic number.

It is an amenable number.

52143055031021 is a deficient number, since it is larger than the sum of its proper divisors (628229578771).

52143055031021 is an equidigital number, since it uses as much as digits as its factorization.

52143055031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628229578770.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 52143055031021 in words is "fifty-two trillion, one hundred forty-three billion, fifty-five million, thirty-one thousand, twenty-one".

Divisors: 1 83 628229578687 52143055031021