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5721210049 = 231321188303
BaseRepresentation
bin1010101010000001…
…01011110011000001
3112202201110120202111
411111000223303001
543204112210144
62343413215321
7261530324452
oct52500536301
915681416674
105721210049
112476523875
121138031541
137023b60b9
143c3b9b129
15237418534
hex15502bcc1

5721210049 has 8 divisors (see below), whose sum is σ = 5974509312. Its totient is φ = 5468290080.

The previous prime is 5721210041. The next prime is 5721210083. The reversal of 5721210049 is 9400121275.

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

It is a cyclic number.

It is not a de Polignac number, because 5721210049 - 23 = 5721210041 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 5721210049.

It is not an unprimeable number, because it can be changed into a prime (5721210041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63769 + ... + 124534.

It is an arithmetic number, because the mean of its divisors is an integer number (746813664).

Almost surely, 25721210049 is an apocalyptic number.

It is an amenable number.

5721210049 is a deficient number, since it is larger than the sum of its proper divisors (253299263).

5721210049 is a wasteful number, since it uses less digits than its factorization.

5721210049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189647.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 5721210049 is about 75638.6809046800. The cubic root of 5721210049 is about 1788.5289088894.

The spelling of 5721210049 in words is "five billion, seven hundred twenty-one million, two hundred ten thousand, forty-nine".

Divisors: 1 23 1321 30383 188303 4330969 248748263 5721210049