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53810863945 = 554311981619
BaseRepresentation
bin110010000111011000…
…001001111101001001
312010220011122010011221
4302013120021331021
51340201040121240
640415333322041
73613324540156
oct620730117511
9163804563157
1053810863945
1120903914593
12a519196321
1350c743bcc7
1428668cd22d
1515ee209a4a
hexc87609f49

53810863945 has 8 divisors (see below), whose sum is σ = 64584959040. Its totient is φ = 43040742960.

The previous prime is 53810863943. The next prime is 53810863949. The reversal of 53810863945 is 54936801835.

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

It is not a de Polignac number, because 53810863945 - 21 = 53810863943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53810863892 and 53810863901.

It is not an unprimeable number, because it can be changed into a prime (53810863943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963655 + ... + 1017964.

It is an arithmetic number, because the mean of its divisors is an integer number (8073119880).

Almost surely, 253810863945 is an apocalyptic number.

It is an amenable number.

53810863945 is a deficient number, since it is larger than the sum of its proper divisors (10774095095).

53810863945 is a wasteful number, since it uses less digits than its factorization.

53810863945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987055.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 53810863945 in words is "fifty-three billion, eight hundred ten million, eight hundred sixty-three thousand, nine hundred forty-five".

Divisors: 1 5 5431 27155 1981619 9908095 10762172789 53810863945