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200801005 = 540160201
BaseRepresentation
bin10111111011111…
…11101011101101
3111222211202012021
423331333223231
5402401113010
631531510141
74655531446
oct1375775355
9458752167
10200801005
11a338a849
12572b8351
13327a7a82
141c9502cd
15129668da
hexbf7faed

200801005 has 4 divisors (see below), whose sum is σ = 240961212. Its totient is φ = 160640800.

The previous prime is 200800969. The next prime is 200801011. The reversal of 200801005 is 500108002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500108002 = 2250054001.

It can be written as a sum of positive squares in 2 ways, for example, as 54922921 + 145878084 = 7411^2 + 12078^2 .

It is not a de Polignac number, because 200801005 - 27 = 200800877 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 200801005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20080096 + ... + 20080105.

It is an arithmetic number, because the mean of its divisors is an integer number (60240303).

Almost surely, 2200801005 is an apocalyptic number.

It is an amenable number.

200801005 is a deficient number, since it is larger than the sum of its proper divisors (40160207).

200801005 is an equidigital number, since it uses as much as digits as its factorization.

200801005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40160206.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 200801005 is about 14170.4271283543. The cubic root of 200801005 is about 585.5832253004.

Adding to 200801005 its reverse (500108002), we get a palindrome (700909007).

The spelling of 200801005 in words is "two hundred million, eight hundred one thousand, five".

Divisors: 1 5 40160201 200801005