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52132400305 = 510426480061
BaseRepresentation
bin110000100011010101…
…010100110010110001
311222120012022022220221
4300203111110302301
51323231343302210
635541014133041
73523614043156
oct604325246261
9158505268827
1052132400305
1120122420a57
12a12b051181
134bba79325b
142747a1222d
151551bac1da
hexc23554cb1

52132400305 has 4 divisors (see below), whose sum is σ = 62558880372. Its totient is φ = 41705920240.

The previous prime is 52132400303. The next prime is 52132400321. The reversal of 52132400305 is 50300423125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20849049664 + 31283350641 = 144392^2 + 176871^2 .

It is not a de Polignac number, because 52132400305 - 21 = 52132400303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52132400305.

It is not an unprimeable number, because it can be changed into a prime (52132400303) 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, 5213240026 + ... + 5213240035.

It is an arithmetic number, because the mean of its divisors is an integer number (15639720093).

Almost surely, 252132400305 is an apocalyptic number.

It is an amenable number.

52132400305 is a deficient number, since it is larger than the sum of its proper divisors (10426480067).

52132400305 is a wasteful number, since it uses less digits than its factorization.

52132400305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426480066.

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 52132400305 in words is "fifty-two billion, one hundred thirty-two million, four hundred thousand, three hundred five".

Divisors: 1 5 10426480061 52132400305