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201210223031 = 1312416373261
BaseRepresentation
bin1011101101100100010…
…0000101100110110111
3201020100200112101101122
42323121010011212313
511244034304114111
6232233521214155
720352114451016
oct2733104054667
9636320471348
10201210223031
1178372a1a724
1232bb4a9135b
1315c87c8288c
149a4ab12a7d
15537982dcdb
hex2ed91059b7

201210223031 has 8 divisors (see below), whose sum is σ = 203587481328. Its totient is φ = 198845712000.

The previous prime is 201210223021. The next prime is 201210223051. The reversal of 201210223031 is 130322012102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201210223031 is a prime.

It is a super-2 number, since 2×2012102230312 (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 (201210223001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3155060 + ... + 3218201.

It is an arithmetic number, because the mean of its divisors is an integer number (25448435166).

Almost surely, 2201210223031 is an apocalyptic number.

201210223031 is a deficient number, since it is larger than the sum of its proper divisors (2377258297).

201210223031 is a wasteful number, since it uses less digits than its factorization.

201210223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373633.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201210223031 its reverse (130322012102), we get a palindrome (331532235133).

The spelling of 201210223031 in words is "two hundred one billion, two hundred ten million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 131 241 31571 6373261 834897191 1535955901 201210223031