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200753281 = 716314481
BaseRepresentation
bin10111111011101…
…00000010000001
3111222202022201201
423331310002001
5402343101111
631530501201
74655242351
oct1375640201
9458668651
10200753281
11a3357a03
1257294801
133278c131
141c93ab61
15129576c1
hexbf74081

200753281 has 8 divisors (see below), whose sum is σ = 203948928. Its totient is φ = 197568000.

The previous prime is 200753263. The next prime is 200753327. The reversal of 200753281 is 182357002.

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

It is a 3-Lehmer number, since φ(200753281) divides (200753281-1)3.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 200753281 - 25 = 200753249 is a prime.

It is a super-2 number, since 2×2007532812 = 80603759664529922, which contains 22 as substring.

It is a deceptive number, since it divides R200753280.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200753681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42561 + ... + 47041.

It is an arithmetic number, because the mean of its divisors is an integer number (25493616).

It is a Poulet number, since it divides 2200753280-1.

Almost surely, 2200753281 is an apocalyptic number.

It is an amenable number.

200753281 is a deficient number, since it is larger than the sum of its proper divisors (3195647).

200753281 is an equidigital number, since it uses as much as digits as its factorization.

200753281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 200753281 is about 14168.7430988073. The cubic root of 200753281 is about 585.5368301340.

The spelling of 200753281 in words is "two hundred million, seven hundred fifty-three thousand, two hundred eighty-one".

Divisors: 1 71 631 4481 44801 318151 2827511 200753281