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5750506821 = 31916835607
BaseRepresentation
bin1010101101100000…
…11100010101000101
3112211202121000101010
411112300130111011
543234112204241
62350341152433
7262334334003
oct52660342505
915752530333
105750506821
112491013984
1211459bb719
137084a2c77
143c7a25a73
15239ca3d16
hex156c1c545

5750506821 has 4 divisors (see below), whose sum is σ = 7667342432. Its totient is φ = 3833671212.

The previous prime is 5750506777. The next prime is 5750506849. The reversal of 5750506821 is 1286050575.

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 not a de Polignac number, because 5750506821 - 213 = 5750498629 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 5750506821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5750506121) 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, 958417801 + ... + 958417806.

It is an arithmetic number, because the mean of its divisors is an integer number (1916835608).

Almost surely, 25750506821 is an apocalyptic number.

It is an amenable number.

5750506821 is a deficient number, since it is larger than the sum of its proper divisors (1916835611).

5750506821 is a wasteful number, since it uses less digits than its factorization.

5750506821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916835610.

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 5750506821 is about 75832.0962455872. The cubic root of 5750506821 is about 1791.5765705965.

The spelling of 5750506821 in words is "five billion, seven hundred fifty million, five hundred six thousand, eight hundred twenty-one".

Divisors: 1 3 1916835607 5750506821