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5215282657 = 132961241941
BaseRepresentation
bin1001101101101101…
…01110010111100001
3111110110110210211221
410312312232113201
541140103021112
62221301335041
7243145112464
oct46666562741
914413423757
105215282657
112236989062
121016707481
13651637090
143769012db
15207ccde07
hex136dae5e1

5215282657 has 32 divisors (see below), whose sum is σ = 5936182560. Its totient is φ = 4548096000.

The previous prime is 5215282619. The next prime is 5215282669. The reversal of 5215282657 is 7562825125.

It can be written as a sum of positive squares in 16 ways, for example, as 2088124416 + 3127158241 = 45696^2 + 55921^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215282657 - 27 = 5215282529 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5215282357) 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 31 ways as a sum of consecutive naturals, for example, 5541807 + ... + 5542747.

It is an arithmetic number, because the mean of its divisors is an integer number (185505705).

Almost surely, 25215282657 is an apocalyptic number.

It is an amenable number.

5215282657 is a deficient number, since it is larger than the sum of its proper divisors (720899903).

5215282657 is a wasteful number, since it uses less digits than its factorization.

5215282657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its digits is 336000, while the sum is 43.

The square root of 5215282657 is about 72216.9139260326. The cubic root of 5215282657 is about 1734.1737859547.

The spelling of 5215282657 in words is "five billion, two hundred fifteen million, two hundred eighty-two thousand, six hundred fifty-seven".

Divisors: 1 13 29 61 241 377 793 941 1769 3133 6989 12233 14701 22997 27289 57401 90857 191113 226781 354757 426329 746213 1664629 2948153 5542277 6576649 13833641 21640177 85496437 179837333 401175589 5215282657