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200440301231 = 1176191704149
BaseRepresentation
bin1011101010101100101…
…1000100011010101111
3201011101000210022020102
42322223023010122233
511241000204114411
6232025255141315
720324045310032
oct2725313043257
9634330708212
10200440301231
1178008363015
1232a1b07483b
1315b94601451
1499b6777019
155331e48d3b
hex2eab2c46af

200440301231 has 4 divisors (see below), whose sum is σ = 200442123000. Its totient is φ = 200438479464.

The previous prime is 200440301227. The next prime is 200440301233. The reversal of 200440301231 is 132103044002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200440301231 - 22 = 200440301227 is a prime.

It is a super-2 number, since 2×2004403012312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200440301233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734456 + ... + 969693.

It is an arithmetic number, because the mean of its divisors is an integer number (50110530750).

Almost surely, 2200440301231 is an apocalyptic number.

200440301231 is a deficient number, since it is larger than the sum of its proper divisors (1821769).

200440301231 is a wasteful number, since it uses less digits than its factorization.

200440301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821768.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 200440301231 its reverse (132103044002), we get a palindrome (332543345233).

The spelling of 200440301231 in words is "two hundred billion, four hundred forty million, three hundred one thousand, two hundred thirty-one".

Divisors: 1 117619 1704149 200440301231