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5731020281 = 72928231627
BaseRepresentation
bin1010101011001100…
…00110110111111001
3112210101220222212102
411111212012313321
543214120122111
62344403353145
7262006603640
oct52546066771
915711828772
105731020281
1124810143a8
12113b3827b5
1370443c47c
143c51d2357
1523820513b
hex155986df9

5731020281 has 8 divisors (see below), whose sum is σ = 6775590720. Its totient is φ = 4742913168.

The previous prime is 5731020277. The next prime is 5731020301. The reversal of 5731020281 is 1820201375.

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

It is not a de Polignac number, because 5731020281 - 22 = 5731020277 is a prime.

It is a super-2 number, since 2×57310202812 = 65689186922466637922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5731020781) 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 7 ways as a sum of consecutive naturals, for example, 14115611 + ... + 14116016.

It is an arithmetic number, because the mean of its divisors is an integer number (846948840).

Almost surely, 25731020281 is an apocalyptic number.

It is an amenable number.

5731020281 is a deficient number, since it is larger than the sum of its proper divisors (1044570439).

5731020281 is a wasteful number, since it uses less digits than its factorization.

5731020281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28231663.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 5731020281 is about 75703.5024354884. The cubic root of 5731020281 is about 1789.5505962720.

The spelling of 5731020281 in words is "five billion, seven hundred thirty-one million, twenty thousand, two hundred eighty-one".

Divisors: 1 7 29 203 28231627 197621389 818717183 5731020281