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50561001010 = 25131722878281
BaseRepresentation
bin101111000101101010…
…111010011000110010
311211111200102222100001
4233011222322120302
51312022104013020
635121041420214
73436643263132
oct570552723062
9154450388301
1050561001010
111a496404453
12997093a66a
1349ca0625a0
142639044ac2
1514adc5c50a
hexbc5aba632

50561001010 has 32 divisors (see below), whose sum is σ = 103775887152. Its totient is φ = 17570519040.

The previous prime is 50561000981. The next prime is 50561001011. The reversal of 50561001010 is 1010016505.

It can be written as a sum of positive squares in 8 ways, for example, as 34520525209 + 16040475801 = 185797^2 + 126651^2 .

It is not an unprimeable number, because it can be changed into a prime (50561001011) 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 15 ways as a sum of consecutive naturals, for example, 11436931 + ... + 11441350.

Almost surely, 250561001010 is an apocalyptic number.

50561001010 is an abundant number, since it is smaller than the sum of its proper divisors (53214886142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50561001010 is a wasteful number, since it uses less digits than its factorization.

50561001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22878318.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 50561001010 its reverse (1010016505), we get a palindrome (51571017515).

The spelling of 50561001010 in words is "fifty billion, five hundred sixty-one million, one thousand, ten".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 22878281 45756562 114391405 228782810 297417653 388930777 594835306 777861554 1487088265 1944653885 2974176530 3889307770 5056100101 10112200202 25280500505 50561001010