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2231353124225 = 521131069738877
BaseRepresentation
bin100000011110000111000…
…000101010010110000001
321220022111211120021022122
4200132013000222112001
5243024302344433400
64425023001214025
7320132003420351
oct40360700522601
97808454507278
102231353124225
117903477382a5
1230054b791315
13132553393a54
1479dd89a8b61
153d098c61685
hex2078702a581

2231353124225 has 24 divisors (see below), whose sum is σ = 2793978491640. Its totient is φ = 1767627832320.

The previous prime is 2231353124213. The next prime is 2231353124239. The reversal of 2231353124225 is 5224213531322.

It can be written as a sum of positive squares in 12 ways, for example, as 1745170460401 + 486182663824 = 1321049^2 + 697268^2 .

It is not a de Polignac number, because 2231353124225 - 220 = 2231352075649 is a prime.

It is a super-3 number, since 3×22313531242253 (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2650487 + ... + 3389363.

It is an arithmetic number, because the mean of its divisors is an integer number (116415770485).

Almost surely, 22231353124225 is an apocalyptic number.

2231353124225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2231353124225 is a deficient number, since it is larger than the sum of its proper divisors (562625367415).

2231353124225 is a wasteful number, since it uses less digits than its factorization.

2231353124225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740069 (or 740064 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

Adding to 2231353124225 its reverse (5224213531322), we get a palindrome (7455566655547).

The spelling of 2231353124225 in words is "two trillion, two hundred thirty-one billion, three hundred fifty-three million, one hundred twenty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 113 565 1069 2825 5345 26725 120797 603985 738877 3019925 3694385 18471925 83493101 417465505 789859513 2087327525 3949297565 19746487825 89254124969 446270624845 2231353124225