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331041020332 = 221117442568209
BaseRepresentation
bin1001101000100111001…
…01010001100110101100
31011122110211002020112211
410310103211101212230
520410433000122312
6412024513540204
732626335150031
oct4642345214654
91148424066484
10331041020332
11118437031310
12541a8b74664
13252a8a93c69
1412045935388
1589278bd3a7
hex4d139519ac

331041020332 has 24 divisors (see below), whose sum is σ = 669163133520. Its totient is φ = 141621826560.

The previous prime is 331041020209. The next prime is 331041020333. The reversal of 331041020332 is 233020140133.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (331041020333) 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, 221283357 + ... + 221284852.

It is an arithmetic number, because the mean of its divisors is an integer number (27881797230).

Almost surely, 2331041020332 is an apocalyptic number.

It is an amenable number.

331041020332 is an abundant number, since it is smaller than the sum of its proper divisors (338122113188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331041020332 is a wasteful number, since it uses less digits than its factorization.

331041020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442568241 (or 442568239 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 331041020332 its reverse (233020140133), we get a palindrome (564061160465).

The spelling of 331041020332 in words is "three hundred thirty-one billion, forty-one million, twenty thousand, three hundred thirty-two".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 442568209 885136418 1770272836 4868250299 7523659553 9736500598 15047319106 19473001196 30094638212 82760255083 165520510166 331041020332