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52411615643 = 76968155547
BaseRepresentation
bin110000110011111110…
…011100100110011011
312000021122200221100202
4300303332130212123
51324314333200033
640024430452415
73533544245102
oct606376344633
9160248627322
1052411615643
1120255a99632
12a1a866410b
134c3359472a
142772b35039
15156b4628e8
hexc33f9c99b

52411615643 has 4 divisors (see below), whose sum is σ = 52479771960. Its totient is φ = 52343459328.

The previous prime is 52411615609. The next prime is 52411615687. The reversal of 52411615643 is 34651611425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52411615643 - 214 = 52411599259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52411615597 and 52411615606.

It is not an unprimeable number, because it can be changed into a prime (52411615603) 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, 34077005 + ... + 34078542.

It is an arithmetic number, because the mean of its divisors is an integer number (13119942990).

Almost surely, 252411615643 is an apocalyptic number.

52411615643 is a deficient number, since it is larger than the sum of its proper divisors (68156317).

52411615643 is an equidigital number, since it uses as much as digits as its factorization.

52411615643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68156316.

The product of its digits is 86400, while the sum is 38.

The spelling of 52411615643 in words is "fifty-two billion, four hundred eleven million, six hundred fifteen thousand, six hundred forty-three".

Divisors: 1 769 68155547 52411615643