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231002333012 = 221161101852143
BaseRepresentation
bin1101011100100011001…
…1111101111101010100
3211002020221122101021102
43113020303331331110
512241043044124022
6254042045405232
722455311301353
oct3271063757524
9732227571242
10231002333012
1189a70881920
123892a269818
1318a2525a319
14b2756c399a
156020090a92
hex35c8cfdf54

231002333012 has 48 divisors (see below), whose sum is σ = 452672527104. Its totient is φ = 102257040000.

The previous prime is 231002332969. The next prime is 231002333041. The reversal of 231002333012 is 210333200132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154988 + ... + 697155.

It is an arithmetic number, because the mean of its divisors is an integer number (9430677648).

Almost surely, 2231002333012 is an apocalyptic number.

231002333012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231002333012 is a deficient number, since it is larger than the sum of its proper divisors (221670194092).

231002333012 is a wasteful number, since it uses less digits than its factorization.

231002333012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852320 (or 852318 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 231002333012 its reverse (210333200132), we get a palindrome (441335533144).

The spelling of 231002333012 in words is "two hundred thirty-one billion, two million, three hundred thirty-three thousand, twelve".

Divisors: 1 2 4 11 22 44 61 101 122 202 244 404 671 1111 1342 2222 2684 4444 6161 12322 24644 67771 135542 271084 852143 1704286 3408572 9373573 18747146 37494292 51980723 86066443 103961446 172132886 207922892 344265772 571787953 946730873 1143575906 1893461746 2287151812 3786923492 5250053023 10500106046 21000212092 57750583253 115501166506 231002333012