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5721855213 = 37969134939
BaseRepresentation
bin1010101010000110…
…01001010011101101
3112202202200100202110
411111003021103231
543204243331323
62343435114233
7261535652424
oct52503112355
915682610673
105721855213
112476924568
1211382a2979
13702580959
143c3cc82bb
152374e4793
hex1550c94ed

5721855213 has 16 divisors (see below), whose sum is σ = 7737113600. Its totient is φ = 3760726320.

The previous prime is 5721855211. The next prime is 5721855277. The reversal of 5721855213 is 3125581275.

It is not a de Polignac number, because 5721855213 - 21 = 5721855211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721855211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146298 + ... + 181236.

It is an arithmetic number, because the mean of its divisors is an integer number (483569600).

Almost surely, 25721855213 is an apocalyptic number.

It is an amenable number.

5721855213 is a deficient number, since it is larger than the sum of its proper divisors (2015258387).

5721855213 is a wasteful number, since it uses less digits than its factorization.

5721855213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35712.

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

The square root of 5721855213 is about 75642.9455600455. The cubic root of 5721855213 is about 1788.5961354076.

The spelling of 5721855213 in words is "five billion, seven hundred twenty-one million, eight hundred fifty-five thousand, two hundred thirteen".

Divisors: 1 3 79 237 691 2073 34939 54589 104817 163767 2760181 8280543 24142849 72428547 1907285071 5721855213