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200023223231 = 1315386401787
BaseRepresentation
bin1011101001001001010…
…0000010101110111111
3201010021221222112210002
42322102110002232333
511234121421120411
6231520035504515
720310522226136
oct2722224025677
9633257875702
10200023223231
1177913993157
123292345813b
1315b29090730
14997720891d
15530a51033b
hex2e92502bbf

200023223231 has 4 divisors (see below), whose sum is σ = 215409625032. Its totient is φ = 184636821432.

The previous prime is 200023223227. The next prime is 200023223237. The reversal of 200023223231 is 132322320002.

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 200023223231 - 22 = 200023223227 is a prime.

It is a super-3 number, since 3×2000232232313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200023223237) 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, 7693200881 + ... + 7693200906.

It is an arithmetic number, because the mean of its divisors is an integer number (53852406258).

Almost surely, 2200023223231 is an apocalyptic number.

200023223231 is a deficient number, since it is larger than the sum of its proper divisors (15386401801).

200023223231 is a wasteful number, since it uses less digits than its factorization.

200023223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386401800.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 200023223231 its reverse (132322320002), we get a palindrome (332345543233).

The spelling of 200023223231 in words is "two hundred billion, twenty-three million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 13 15386401787 200023223231